45070881 has 4 divisors (see below), whose sum is σ = 60094512. Its totient is φ = 30047252.

The previous prime is 45070877. The next prime is 45070897. The reversal of 45070881 is 18807054.

It is a happy number.

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 45070881 - 2² = 45070877 is a prime.

It is a super-2 number, since 2×45070881² = 4062768628232322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45070811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7511811 + ... + 7511816.

It is an arithmetic number, because the mean of its divisors is an integer number (15023628).

Almost surely, 2^45070881 is an apocalyptic number.

It is an amenable number.

45070881 is a deficient number, since it is larger than the sum of its proper divisors (15023631).

45070881 is a wasteful number, since it uses less digits than its factorization.

45070881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15023630.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 45070881 is about 6713.4850115272. The cubic root of 45070881 is about 355.8759851881.

The spelling of 45070881 in words is "forty-five million, seventy thousand, eight hundred eighty-one".