45111231 has 24 divisors (see below), whose sum is σ = 73382400. Its totient is φ = 26456400.

The previous prime is 45111221. The next prime is 45111271. The reversal of 45111231 is 13211154.

It is not a de Polignac number, because 45111231 - 2⁹ = 45110719 is a prime.

It is a super-2 number, since 2×45111231² = 4070046324670722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45111221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4281 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (3057600).

Almost surely, 2^45111231 is an apocalyptic number.

45111231 is a deficient number, since it is larger than the sum of its proper divisors (28271169).

45111231 is a wasteful number, since it uses less digits than its factorization.

45111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14747 (or 14744 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 45111231 is about 6716.4894848425. The cubic root of 45111231 is about 355.9821536103.

Adding to 45111231 its reverse (13211154), we get a palindrome (58322385).

The spelling of 45111231 in words is "forty-five million, one hundred eleven thousand, two hundred thirty-one".