2516231 has 8 divisors (see below), whose sum is σ = 2597760. Its totient is φ = 2435832.

The previous prime is 2516209. The next prime is 2516233. The reversal of 2516231 is 1326152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2516231 is a prime.

It is a super-2 number, since 2×2516231² = 12662836890722, 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 (2516233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6830 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (324720).

2^2516231 is an apocalyptic number.

2516231 is a deficient number, since it is larger than the sum of its proper divisors (81529).

2516231 is a wasteful number, since it uses less digits than its factorization.

2516231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

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

The square root of 2516231 is about 1586.2632190151. The cubic root of 2516231 is about 136.0139655497.

The spelling of 2516231 in words is "two million, five hundred sixteen thousand, two hundred thirty-one".