145553904 has 30 divisors (see below), whose sum is σ = 407349176. Its totient is φ = 48517920.

The previous prime is 145553887. The next prime is 145553911. The reversal of 145553904 is 409355541.

145553904 is a `hidden beast` number, since 14 + 5 + 553 + 90 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505252 + ... + 505539.

Almost surely, 2^145553904 is an apocalyptic number.

It is an amenable number.

145553904 is an abundant number, since it is smaller than the sum of its proper divisors (261795272).

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

145553904 is a wasteful number, since it uses less digits than its factorization.

145553904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010805 (or 1010796 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 145553904 is about 12064.5722675941. The cubic root of 145553904 is about 526.0268989217.

The spelling of 145553904 in words is "one hundred forty-five million, five hundred fifty-three thousand, nine hundred four".