45746221 has 4 divisors (see below), whose sum is σ = 45763200. Its totient is φ = 45729244.

The previous prime is 45746213. The next prime is 45746237. The reversal of 45746221 is 12264754.

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: 12264754 = 2 ⋅6132377.

It is a cyclic number.

It is not a de Polignac number, because 45746221 - 2³ = 45746213 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 (45746251) 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 3 ways as a sum of consecutive naturals, for example, 3451 + ... + 10168.

It is an arithmetic number, because the mean of its divisors is an integer number (11440800).

Almost surely, 2^45746221 is an apocalyptic number.

It is an amenable number.

45746221 is a deficient number, since it is larger than the sum of its proper divisors (16979).

45746221 is a wasteful number, since it uses less digits than its factorization.

45746221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16978.

The product of its digits is 13440, while the sum is 31.

The square root of 45746221 is about 6763.5952717471. The cubic root of 45746221 is about 357.6446569299.

The spelling of 45746221 in words is "forty-five million, seven hundred forty-six thousand, two hundred twenty-one".