45418651 has 4 divisors (see below), whose sum is σ = 45750312. Its totient is φ = 45086992.

The previous prime is 45418649. The next prime is 45418657. The reversal of 45418651 is 15681454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15681454 = 2 ⋅7840727.

It is a cyclic number.

It is not a de Polignac number, because 45418651 - 2¹ = 45418649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45418657) 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, 165625 + ... + 165898.

It is an arithmetic number, because the mean of its divisors is an integer number (11437578).

Almost surely, 2^45418651 is an apocalyptic number.

45418651 is a deficient number, since it is larger than the sum of its proper divisors (331661).

45418651 is a wasteful number, since it uses less digits than its factorization.

45418651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331660.

The product of its digits is 19200, while the sum is 34.

The square root of 45418651 is about 6739.3360948984. The cubic root of 45418651 is about 356.7889621477.

The spelling of 45418651 in words is "forty-five million, four hundred eighteen thousand, six hundred fifty-one".