2615231 has 4 divisors (see below), whose sum is σ = 2623464. Its totient is φ = 2607000.

The previous prime is 2615227. The next prime is 2615233. The reversal of 2615231 is 1325162.

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 2615231 - 2² = 2615227 is a prime.

It is a super-2 number, since 2×2615231² = 13678866366722, 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 (2615233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3620 + ... + 4281.

It is an arithmetic number, because the mean of its divisors is an integer number (655866).

2^2615231 is an apocalyptic number.

2615231 is a deficient number, since it is larger than the sum of its proper divisors (8233).

2615231 is an equidigital number, since it uses as much as digits as its factorization.

2615231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232.

The product of its digits is 360, while the sum is 20.

The square root of 2615231 is about 1617.1675856262. The cubic root of 2615231 is about 137.7748727323.

The spelling of 2615231 in words is "two million, six hundred fifteen thousand, two hundred thirty-one".