45221451 has 12 divisors (see below), whose sum is σ = 66275496. Its totient is φ = 27406720.

The previous prime is 45221447. The next prime is 45221453. The reversal of 45221451 is 15412254.

It is not a de Polignac number, because 45221451 - 2² = 45221447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45221453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61926 + ... + 62651.

It is an arithmetic number, because the mean of its divisors is an integer number (5522958).

Almost surely, 2^45221451 is an apocalyptic number.

45221451 is a deficient number, since it is larger than the sum of its proper divisors (21054045).

45221451 is a wasteful number, since it uses less digits than its factorization.

45221451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124602 (or 124591 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 45221451 is about 6724.6896582668. The cubic root of 45221451 is about 356.2718408278.

The spelling of 45221451 in words is "forty-five million, two hundred twenty-one thousand, four hundred fifty-one".