45233621 has 4 divisors (see below), whose sum is σ = 45248544. Its totient is φ = 45218700.

The previous prime is 45233597. The next prime is 45233653. The reversal of 45233621 is 12633254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12633254 = 2 ⋅6316627.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45233621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45233521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115 + ... + 9576.

It is an arithmetic number, because the mean of its divisors is an integer number (11312136).

Almost surely, 2^45233621 is an apocalyptic number.

It is an amenable number.

45233621 is a deficient number, since it is larger than the sum of its proper divisors (14923).

45233621 is a wasteful number, since it uses less digits than its factorization.

45233621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14922.

The product of its digits is 4320, while the sum is 26.

The square root of 45233621 is about 6725.5944718664. The cubic root of 45233621 is about 356.3037979286.

Adding to 45233621 its reverse (12633254), we get a palindrome (57866875).

It can be divided in two parts, 45233 and 621, that added together give a palindrome (45854).

The spelling of 45233621 in words is "forty-five million, two hundred thirty-three thousand, six hundred twenty-one".