145544100 has 144 divisors (see below), whose sum is σ = 461095488. Its totient is φ = 35228160.

The previous prime is 145544099. The next prime is 145544111. The reversal of 145544100 is 1445541.

It is a happy number.

145544100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 261022 + ... + 261578.

It is an arithmetic number, because the mean of its divisors is an integer number (3202052).

Almost surely, 2^145544100 is an apocalyptic number.

145544100 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 145544100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230547744).

145544100 is an abundant number, since it is smaller than the sum of its proper divisors (315551388).

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

145544100 is a wasteful number, since it uses less digits than its factorization.

145544100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145544100 is about 12064.1659471345. The cubic root of 145544100 is about 526.0150882148.

Adding to 145544100 its reverse (1445541), we get a palindrome (146989641).

The spelling of 145544100 in words is "one hundred forty-five million, five hundred forty-four thousand, one hundred".