45751949 has 4 divisors (see below), whose sum is σ = 45991680. Its totient is φ = 45512220.

The previous prime is 45751919. The next prime is 45751961. The reversal of 45751949 is 94915754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45751949 - 2¹⁶ = 45686413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45751919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119579 + ... + 119960.

It is an arithmetic number, because the mean of its divisors is an integer number (11497920).

Almost surely, 2^45751949 is an apocalyptic number.

It is an amenable number.

45751949 is a deficient number, since it is larger than the sum of its proper divisors (239731).

45751949 is a wasteful number, since it uses less digits than its factorization.

45751949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239730.

The product of its digits is 226800, while the sum is 44.

The square root of 45751949 is about 6764.0187019257. The cubic root of 45751949 is about 357.6595835042.

The spelling of 45751949 in words is "forty-five million, seven hundred fifty-one thousand, nine hundred forty-nine".