45091451 has 2 divisors, whose sum is σ = 45091452. Its totient is φ = 45091450.

The previous prime is 45091411. The next prime is 45091511. The reversal of 45091451 is 15419054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45091451 - 2¹⁰ = 45090427 is a prime.

It is not a weakly prime, because it can be changed into another prime (45091411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22545725 + 22545726.

It is an arithmetic number, because the mean of its divisors is an integer number (22545726).

Almost surely, 2^45091451 is an apocalyptic number.

45091451 is a deficient number, since it is larger than the sum of its proper divisors (1).

45091451 is an equidigital number, since it uses as much as digits as its factorization.

45091451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 45091451 is about 6715.0168279759. The cubic root of 45091451 is about 355.9301166324.

The spelling of 45091451 in words is "forty-five million, ninety-one thousand, four hundred fifty-one".