45881641 has 6 divisors (see below), whose sum is σ = 49682670. Its totient is φ = 42352128.

The previous prime is 45881621. The next prime is 45881651. The reversal of 45881641 is 14618854.

It can be written as a sum of positive squares in 3 ways, for example, as 4857616 + 41024025 = 2204^2 + 6405^2 .

It is not a de Polignac number, because 45881641 - 2⁵ = 45881609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45881641.

It is not an unprimeable number, because it can be changed into a prime (45881621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135576 + ... + 135913.

It is an arithmetic number, because the mean of its divisors is an integer number (8280445).

Almost surely, 2^45881641 is an apocalyptic number.

It is an amenable number.

45881641 is a deficient number, since it is larger than the sum of its proper divisors (3801029).

45881641 is a wasteful number, since it uses less digits than its factorization.

45881641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271515 (or 271502 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 45881641 is about 6773.5988218967. The cubic root of 45881641 is about 357.9972144847.

The spelling of 45881641 in words is "forty-five million, eight hundred eighty-one thousand, six hundred forty-one".