145553700 has 72 divisors (see below), whose sum is σ = 422347968. Its totient is φ = 38702720.

The previous prime is 145553687. The next prime is 145553743. The reversal of 145553700 is 7355541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195529 + ... + 196271.

It is an arithmetic number, because the mean of its divisors is an integer number (5865944).

Almost surely, 2^145553700 is an apocalyptic number.

145553700 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 145553700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211173984).

145553700 is an abundant number, since it is smaller than the sum of its proper divisors (276794268).

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

145553700 is a wasteful number, since it uses less digits than its factorization.

145553700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 145553700 is about 12064.5638130850. The cubic root of 145553700 is about 526.0266531719.

It can be divided in two parts, 1455 and 53700, that added together give a palindrome (55155).

The spelling of 145553700 in words is "one hundred forty-five million, five hundred fifty-three thousand, seven hundred".