45199873 has 4 divisors (see below), whose sum is σ = 45330480. Its totient is φ = 45069268.

The previous prime is 45199871. The next prime is 45199901. The reversal of 45199873 is 37899154.

It is a happy number.

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 45199873 - 2¹ = 45199871 is a prime.

It is a super-2 number, since 2×45199873² = 4086057038432258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45199871) 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, 64783 + ... + 65476.

It is an arithmetic number, because the mean of its divisors is an integer number (11332620).

Almost surely, 2^45199873 is an apocalyptic number.

It is an amenable number.

45199873 is a deficient number, since it is larger than the sum of its proper divisors (130607).

45199873 is a wasteful number, since it uses less digits than its factorization.

45199873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130606.

The product of its digits is 272160, while the sum is 46.

The square root of 45199873 is about 6723.0850805266. The cubic root of 45199873 is about 356.2151652407.

The spelling of 45199873 in words is "forty-five million, one hundred ninety-nine thousand, eight hundred seventy-three".