45031147 has 12 divisors (see below), whose sum is σ = 55465560. Its totient is φ = 36326976.

The previous prime is 45031141. The next prime is 45031163. The reversal of 45031147 is 74113054.

It is not a de Polignac number, because 45031147 - 2³ = 45031139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45031141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26197 + ... + 27862.

It is an arithmetic number, because the mean of its divisors is an integer number (4622130).

Almost surely, 2^45031147 is an apocalyptic number.

45031147 is a deficient number, since it is larger than the sum of its proper divisors (10434413).

45031147 is a wasteful number, since it uses less digits than its factorization.

45031147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54090 (or 54083 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 45031147 is about 6710.5250912280. The cubic root of 45031147 is about 355.7713756379.

The spelling of 45031147 in words is "forty-five million, thirty-one thousand, one hundred forty-seven".