45531897 has 8 divisors (see below), whose sum is σ = 61335456. Its totient is φ = 30041472.

The previous prime is 45531877. The next prime is 45531947. The reversal of 45531897 is 79813554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45531897 - 2⁶ = 45531833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45531877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77943 + ... + 78524.

It is an arithmetic number, because the mean of its divisors is an integer number (7666932).

Almost surely, 2^45531897 is an apocalyptic number.

It is an amenable number.

45531897 is a deficient number, since it is larger than the sum of its proper divisors (15803559).

45531897 is a wasteful number, since it uses less digits than its factorization.

45531897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156567.

The product of its digits is 151200, while the sum is 42.

The square root of 45531897 is about 6747.7327303325. The cubic root of 45531897 is about 357.0852529647.

The spelling of 45531897 in words is "forty-five million, five hundred thirty-one thousand, eight hundred ninety-seven".