2231513265 has 16 divisors (see below), whose sum is σ = 3602020608. Its totient is φ = 1179607296.

The previous prime is 2231513261. The next prime is 2231513299. The reversal of 2231513265 is 5623151322.

It is not a de Polignac number, because 2231513265 - 2² = 2231513261 is a prime.

It is a super-3 number, since 3×2231513265³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231513261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656569 + ... + 659958.

It is an arithmetic number, because the mean of its divisors is an integer number (225126288).

Almost surely, 2^2231513265 is an apocalyptic number.

It is an amenable number.

2231513265 is a deficient number, since it is larger than the sum of its proper divisors (1370507343).

2231513265 is a wasteful number, since it uses less digits than its factorization.

2231513265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316648.

The product of its digits is 10800, while the sum is 30.

The square root of 2231513265 is about 47238.8956793022. The cubic root of 2231513265 is about 1306.7720118093.

Adding to 2231513265 its reverse (5623151322), we get a palindrome (7854664587).

The spelling of 2231513265 in words is "two billion, two hundred thirty-one million, five hundred thirteen thousand, two hundred sixty-five".