45731023 has 8 divisors (see below), whose sum is σ = 49331408. Its totient is φ = 42142464.

The previous prime is 45731017. The next prime is 45731033. The reversal of 45731023 is 32013754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-45731023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45731033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6136 + ... + 11362.

It is an arithmetic number, because the mean of its divisors is an integer number (6166426).

Almost surely, 2^45731023 is an apocalyptic number.

45731023 is a deficient number, since it is larger than the sum of its proper divisors (3600385).

45731023 is a wasteful number, since it uses less digits than its factorization.

45731023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 45731023 is about 6762.4716635266. The cubic root of 45731023 is about 357.6050464774.

Adding to 45731023 its reverse (32013754), we get a palindrome (77744777).

The spelling of 45731023 in words is "forty-five million, seven hundred thirty-one thousand, twenty-three".