45251451 has 18 divisors (see below), whose sum is σ = 76035492. Its totient is φ = 25857720.

The previous prime is 45251443. The next prime is 45251471. The reversal of 45251451 is 15415254.

It is not a de Polignac number, because 45251451 - 2³ = 45251443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45251411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 50865 + ... + 51746.

It is an arithmetic number, because the mean of its divisors is an integer number (4224194).

Almost surely, 2^45251451 is an apocalyptic number.

45251451 is a deficient number, since it is larger than the sum of its proper divisors (30784041).

45251451 is a wasteful number, since it uses less digits than its factorization.

45251451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102631 (or 102621 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 45251451 is about 6726.9198746529. The cubic root of 45251451 is about 356.3506072270.

The spelling of 45251451 in words is "forty-five million, two hundred fifty-one thousand, four hundred fifty-one".