2615132231 has 2 divisors, whose sum is σ = 2615132232. Its totient is φ = 2615132230.

The previous prime is 2615132209. The next prime is 2615132263. The reversal of 2615132231 is 1322315162.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2615132231 is a prime.

It is a super-2 number, since 2×2615132231² = 13677833171230074722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2615132231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2615132291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307566115 + 1307566116.

It is an arithmetic number, because the mean of its divisors is an integer number (1307566116).

Almost surely, 2^2615132231 is an apocalyptic number.

2615132231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615132231 is an equidigital number, since it uses as much as digits as its factorization.

2615132231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 2615132231 is about 51138.3635932946. The cubic root of 2615132231 is about 1377.7313827016.

Adding to 2615132231 its reverse (1322315162), we get a palindrome (3937447393).

The spelling of 2615132231 in words is "two billion, six hundred fifteen million, one hundred thirty-two thousand, two hundred thirty-one".