145554100 has 72 divisors (see below), whose sum is σ = 327229056. Its totient is φ = 56160000.

The previous prime is 145554091. The next prime is 145554127. The reversal of 145554100 is 1455541.

It is a happy number.

145554100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 536965 + ... + 537235.

It is an arithmetic number, because the mean of its divisors is an integer number (4544848).

Almost surely, 2^145554100 is an apocalyptic number.

145554100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145554100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163614528).

145554100 is an abundant number, since it is smaller than the sum of its proper divisors (181674956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145554100 is a wasteful number, since it uses less digits than its factorization.

145554100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 145554100 is about 12064.5803905482. The cubic root of 145554100 is about 526.0271350341.

Multiplying 145554100 by its reverse (1455541), we get a square (211859960268100 = 14555410²).

145554100 divided by its reverse (1455541) gives a square (100 = 10²).

It can be divided in two parts, 1455 and 54100, that added together give a palindrome (55555).

The spelling of 145554100 in words is "one hundred forty-five million, five hundred fifty-four thousand, one hundred".