45591451 has 12 divisors (see below), whose sum is σ = 49291632. Its totient is φ = 42087584.

The previous prime is 45591449. The next prime is 45591473. The reversal of 45591451 is 15419554.

It is a happy number.

It is not a de Polignac number, because 45591451 - 2¹ = 45591449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45591251) 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 11 ways as a sum of consecutive naturals, for example, 18165 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (4107636).

Almost surely, 2^45591451 is an apocalyptic number.

45591451 is a deficient number, since it is larger than the sum of its proper divisors (3700181).

45591451 is a wasteful number, since it uses less digits than its factorization.

45591451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2409 counting only the distinct ones).

The product of its digits is 18000, while the sum is 34.

The square root of 45591451 is about 6752.1441779630. The cubic root of 45591451 is about 357.2408698080.

The spelling of 45591451 in words is "forty-five million, five hundred ninety-one thousand, four hundred fifty-one".