45042855 has 96 divisors (see below), whose sum is σ = 90091008. Its totient is φ = 19050240.

The previous prime is 45042839. The next prime is 45042871. The reversal of 45042855 is 55824054.

It is an interprime number because it is at equal distance from previous prime (45042839) and next prime (45042871).

It is not a de Polignac number, because 45042855 - 2⁴ = 45042839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 542644 + ... + 542726.

It is an arithmetic number, because the mean of its divisors is an integer number (938448).

Almost surely, 2^45042855 is an apocalyptic number.

45042855 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

45042855 is a wasteful number, since it uses less digits than its factorization.

45042855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 45042855 is about 6711.3973954758. The cubic root of 45042855 is about 355.8022062267.

The spelling of 45042855 in words is "forty-five million, forty-two thousand, eight hundred fifty-five".