45070231 has 4 divisors (see below), whose sum is σ = 45322200. Its totient is φ = 44818264.

The previous prime is 45070217. The next prime is 45070237. The reversal of 45070231 is 13207054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45070231 - 2¹⁵ = 45037463 is a prime.

It is a super-2 number, since 2×45070231² = 4062651444786722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45070237) 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, 125716 + ... + 126073.

It is an arithmetic number, because the mean of its divisors is an integer number (11330550).

Almost surely, 2^45070231 is an apocalyptic number.

45070231 is a deficient number, since it is larger than the sum of its proper divisors (251969).

45070231 is a wasteful number, since it uses less digits than its factorization.

45070231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251968.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 45070231 is about 6713.4366013242. The cubic root of 45070231 is about 355.8742743977.

Adding to 45070231 its reverse (13207054), we get a palindrome (58277285).

The spelling of 45070231 in words is "forty-five million, seventy thousand, two hundred thirty-one".