45572231 has 2 divisors, whose sum is σ = 45572232. Its totient is φ = 45572230.

The previous prime is 45572213. The next prime is 45572243. The reversal of 45572231 is 13227554.

It is a happy number.

45572231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (45572213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45572231 - 2¹⁸ = 45310087 is a prime.

It is a super-2 number, since 2×45572231² = 4153656476634722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45572194 and 45572203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45572251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22786115 + 22786116.

It is an arithmetic number, because the mean of its divisors is an integer number (22786116).

Almost surely, 2^45572231 is an apocalyptic number.

45572231 is a deficient number, since it is larger than the sum of its proper divisors (1).

45572231 is an equidigital number, since it uses as much as digits as its factorization.

45572231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 45572231 is about 6750.7207763320. The cubic root of 45572231 is about 357.1906620428.

Adding to 45572231 its reverse (13227554), we get a palindrome (58799785).

The spelling of 45572231 in words is "forty-five million, five hundred seventy-two thousand, two hundred thirty-one".