45451451 has 2 divisors, whose sum is σ = 45451452. Its totient is φ = 45451450.

The previous prime is 45451447. The next prime is 45451457. The reversal of 45451451 is 15415454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45451451 - 2² = 45451447 is a prime.

It is not a weakly prime, because it can be changed into another prime (45451457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22725725 + 22725726.

It is an arithmetic number, because the mean of its divisors is an integer number (22725726).

Almost surely, 2^45451451 is an apocalyptic number.

45451451 is a deficient number, since it is larger than the sum of its proper divisors (1).

45451451 is an equidigital number, since it uses as much as digits as its factorization.

45451451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 29.

The square root of 45451451 is about 6741.7691298353. The cubic root of 45451451 is about 356.8748289427.

The spelling of 45451451 in words is "forty-five million, four hundred fifty-one thousand, four hundred fifty-one".