45131948 has 12 divisors (see below), whose sum is σ = 80276112. Its totient is φ = 22195920.

The previous prime is 45131941. The next prime is 45131953. The reversal of 45131948 is 84913154.

It is not an unprimeable number, because it can be changed into a prime (45131941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92240 + ... + 92727.

It is an arithmetic number, because the mean of its divisors is an integer number (6689676).

Almost surely, 2^45131948 is an apocalyptic number.

It is an amenable number.

45131948 is a deficient number, since it is larger than the sum of its proper divisors (35144164).

45131948 is a wasteful number, since it uses less digits than its factorization.

45131948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185032 (or 185030 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 45131948 is about 6718.0315569369. The cubic root of 45131948 is about 356.0366393296.

The spelling of 45131948 in words is "forty-five million, one hundred thirty-one thousand, nine hundred forty-eight".