45464981 has 4 divisors (see below), whose sum is σ = 45596352. Its totient is φ = 45333612.

The previous prime is 45464977. The next prime is 45464983. The reversal of 45464981 is 18946454.

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 45464981 - 2² = 45464977 is a prime.

It is a super-2 number, since 2×45464981² = 4134128994660722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45464983) 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, 65165 + ... + 65858.

It is an arithmetic number, because the mean of its divisors is an integer number (11399088).

Almost surely, 2^45464981 is an apocalyptic number.

It is an amenable number.

45464981 is a deficient number, since it is larger than the sum of its proper divisors (131371).

45464981 is a wasteful number, since it uses less digits than its factorization.

45464981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131370.

The product of its digits is 138240, while the sum is 41.

The square root of 45464981 is about 6742.7725009821. The cubic root of 45464981 is about 356.9102369608.

The spelling of 45464981 in words is "forty-five million, four hundred sixty-four thousand, nine hundred eighty-one".