45198923 has 12 divisors (see below), whose sum is σ = 57358872. Its totient is φ = 35219520.

The previous prime is 45198911. The next prime is 45198931. The reversal of 45198923 is 32989154.

It is not a de Polignac number, because 45198923 - 2¹⁴ = 45182539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45198973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41390 + ... + 42467.

It is an arithmetic number, because the mean of its divisors is an integer number (4779906).

Almost surely, 2^45198923 is an apocalyptic number.

45198923 is a deficient number, since it is larger than the sum of its proper divisors (12159949).

45198923 is a wasteful number, since it uses less digits than its factorization.

45198923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83882 (or 83875 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 45198923 is about 6723.0144280672. The cubic root of 45198923 is about 356.2126696085.

The spelling of 45198923 in words is "forty-five million, one hundred ninety-eight thousand, nine hundred twenty-three".