45665613 has 40 divisors (see below), whose sum is σ = 79817408. Its totient is φ = 25474176.

The previous prime is 45665611. The next prime is 45665629. The reversal of 45665613 is 31656654.

It is not a de Polignac number, because 45665613 - 2¹ = 45665611 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45665611) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23445 + ... + 25317.

Almost surely, 2^45665613 is an apocalyptic number.

45665613 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

45665613 is a deficient number, since it is larger than the sum of its proper divisors (34151795).

45665613 is a wasteful number, since it uses less digits than its factorization.

45665613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1926 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 45665613 is about 6757.6336834723. The cubic root of 45665613 is about 357.4344685662.

The spelling of 45665613 in words is "forty-five million, six hundred sixty-five thousand, six hundred thirteen".