45231723 has 32 divisors (see below), whose sum is σ = 72473600. Its totient is φ = 27783648.

The previous prime is 45231721. The next prime is 45231751. The reversal of 45231723 is 32713254.

It is not a de Polignac number, because 45231723 - 2¹ = 45231721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45231721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17790 + ... + 20172.

It is an arithmetic number, because the mean of its divisors is an integer number (2264800).

Almost surely, 2^45231723 is an apocalyptic number.

45231723 is a deficient number, since it is larger than the sum of its proper divisors (27241877).

45231723 is a wasteful number, since it uses less digits than its factorization.

45231723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448 (or 2442 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 45231723 is about 6725.4533676177. The cubic root of 45231723 is about 356.2988143636.

Adding to 45231723 its reverse (32713254), we get a palindrome (77944977).

It can be divided in two parts, 45231 and 723, that added together give a palindrome (45954).

The spelling of 45231723 in words is "forty-five million, two hundred thirty-one thousand, seven hundred twenty-three".