45147123 has 12 divisors (see below), whose sum is σ = 74528688. Its totient is φ = 25798320.

The previous prime is 45147107. The next prime is 45147127. The reversal of 45147123 is 32174154.

It is not a de Polignac number, because 45147123 - 2⁴ = 45147107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45147127) 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, 358248 + ... + 358373.

It is an arithmetic number, because the mean of its divisors is an integer number (6210724).

Almost surely, 2^45147123 is an apocalyptic number.

45147123 is a deficient number, since it is larger than the sum of its proper divisors (29381565).

45147123 is a wasteful number, since it uses less digits than its factorization.

45147123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716634 (or 716631 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 45147123 is about 6719.1608851106. The cubic root of 45147123 is about 356.0765390075.

It can be divided in two parts, 451 and 47123, that added together give a palindrome (47574).

The spelling of 45147123 in words is "forty-five million, one hundred forty-seven thousand, one hundred twenty-three".