45097881 has 4 divisors (see below), whose sum is σ = 60130512. Its totient is φ = 30065252.

The previous prime is 45097873. The next prime is 45097891. The reversal of 45097881 is 18879054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45097881 - 2³ = 45097873 is a prime.

It is a super-2 number, since 2×45097881² = 4067637741380322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45097891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7516311 + ... + 7516316.

It is an arithmetic number, because the mean of its divisors is an integer number (15032628).

Almost surely, 2^45097881 is an apocalyptic number.

It is an amenable number.

45097881 is a deficient number, since it is larger than the sum of its proper divisors (15032631).

45097881 is a wasteful number, since it uses less digits than its factorization.

45097881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15032630.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 45097881 is about 6715.4955885623. The cubic root of 45097881 is about 355.9470342655.

The spelling of 45097881 in words is "forty-five million, ninety-seven thousand, eight hundred eighty-one".