45253731 has 8 divisors (see below), whose sum is σ = 60375040. Its totient is φ = 30150792.

The previous prime is 45253723. The next prime is 45253751. The reversal of 45253731 is 13735254.

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

It is not a de Polignac number, because 45253731 - 2³ = 45253723 is a prime.

It is a super-2 number, since 2×45253731² = 4095800338840722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45253751) 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 7 ways as a sum of consecutive naturals, for example, 2910 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (7546880).

Almost surely, 2^45253731 is an apocalyptic number.

45253731 is a deficient number, since it is larger than the sum of its proper divisors (15121309).

45253731 is a wasteful number, since it uses less digits than its factorization.

45253731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9185.

The product of its digits is 12600, while the sum is 30.

The square root of 45253731 is about 6727.0893408665. The cubic root of 45253731 is about 356.3565920497.

Adding to 45253731 its reverse (13735254), we get a palindrome (58988985).

It can be divided in two parts, 4525 and 3731, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 45253731 in words is "forty-five million, two hundred fifty-three thousand, seven hundred thirty-one".