45990861 has 12 divisors (see below), whose sum is σ = 71332992. Its totient is φ = 26280408.

The previous prime is 45990859. The next prime is 45990911. The reversal of 45990861 is 16809954.

It is not a de Polignac number, because 45990861 - 2¹ = 45990859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45990761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156285 + ... + 156578.

It is an arithmetic number, because the mean of its divisors is an integer number (5944416).

Almost surely, 2^45990861 is an apocalyptic number.

It is an amenable number.

45990861 is a deficient number, since it is larger than the sum of its proper divisors (25342131).

45990861 is a wasteful number, since it uses less digits than its factorization.

45990861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312880 (or 312873 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 45990861 is about 6781.6562136399. The cubic root of 45990861 is about 358.2810569253.

The spelling of 45990861 in words is "forty-five million, nine hundred ninety thousand, eight hundred sixty-one".