45145651 has 2 divisors, whose sum is σ = 45145652. Its totient is φ = 45145650.

The previous prime is 45145637. The next prime is 45145669. The reversal of 45145651 is 15654154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45145651 - 2²⁵ = 11591219 is a prime.

It is not a weakly prime, because it can be changed into another prime (45125651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572825 + 22572826.

It is an arithmetic number, because the mean of its divisors is an integer number (22572826).

Almost surely, 2^45145651 is an apocalyptic number.

45145651 is a deficient number, since it is larger than the sum of its proper divisors (1).

45145651 is an equidigital number, since it uses as much as digits as its factorization.

45145651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 31.

The square root of 45145651 is about 6719.0513467304. The cubic root of 45145651 is about 356.0726690646.

It can be divided in two parts, 45145 and 651, that added together give a square (45796 = 214²).

The spelling of 45145651 in words is "forty-five million, one hundred forty-five thousand, six hundred fifty-one".