45193951 has 16 divisors (see below), whose sum is σ = 52128000. Its totient is φ = 38858040.

The previous prime is 45193943. The next prime is 45193957. The reversal of 45193951 is 15939154.

It is a happy number.

It is not a de Polignac number, because 45193951 - 2³ = 45193943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45193951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45193957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75150 + ... + 75748.

It is an arithmetic number, because the mean of its divisors is an integer number (3258000).

Almost surely, 2^45193951 is an apocalyptic number.

45193951 is a deficient number, since it is larger than the sum of its proper divisors (6934049).

45193951 is an equidigital number, since it uses as much as digits as its factorization.

45193951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 629 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 45193951 is about 6722.6446432933. The cubic root of 45193951 is about 356.1996076871.

The spelling of 45193951 in words is "forty-five million, one hundred ninety-three thousand, nine hundred fifty-one".