145555044 has 48 divisors (see below), whose sum is σ = 351859200. Its totient is φ = 46782720.

The previous prime is 145555001. The next prime is 145555057. The reversal of 145555044 is 440555541.

It is a junction number, because it is equal to n+sod(n) for n = 145554996 and 145555014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138232 + ... + 139280.

It is an arithmetic number, because the mean of its divisors is an integer number (7330400).

Almost surely, 2^145555044 is an apocalyptic number.

It is an amenable number.

145555044 is an abundant number, since it is smaller than the sum of its proper divisors (206304156).

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

145555044 is a wasteful number, since it uses less digits than its factorization.

145555044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 145555044 is about 12064.6195132710. The cubic root of 145555044 is about 526.0282722253.

The spelling of 145555044 in words is "one hundred forty-five million, five hundred fifty-five thousand, forty-four".