45115651 has 4 divisors (see below), whose sum is σ = 51560752. Its totient is φ = 38670552.

The previous prime is 45115597. The next prime is 45115663. The reversal of 45115651 is 15651154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45115651 - 2¹⁵ = 45082883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45115151) 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, 3222540 + ... + 3222553.

It is an arithmetic number, because the mean of its divisors is an integer number (12890188).

Almost surely, 2^45115651 is an apocalyptic number.

45115651 is a deficient number, since it is larger than the sum of its proper divisors (6445101).

45115651 is an equidigital number, since it uses as much as digits as its factorization.

45115651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445100.

The product of its digits is 3000, while the sum is 28.

The square root of 45115651 is about 6716.8185177210. The cubic root of 45115651 is about 355.9937796119.

The spelling of 45115651 in words is "forty-five million, one hundred fifteen thousand, six hundred fifty-one".