2152831 has 2 divisors, whose sum is σ = 2152832. Its totient is φ = 2152830.

The previous prime is 2152819. The next prime is 2152837. The reversal of 2152831 is 1382512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2152831 - 2¹¹ = 2150783 is a prime.

It is a super-2 number, since 2×2152831² = 9269362629122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076415 + 1076416.

It is an arithmetic number, because the mean of its divisors is an integer number (1076416).

2^2152831 is an apocalyptic number.

2152831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152831 is an equidigital number, since it uses as much as digits as its factorization.

2152831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 22.

The square root of 2152831 is about 1467.2528752741. The cubic root of 2152831 is about 129.1229123163.

The spelling of 2152831 in words is "two million, one hundred fifty-two thousand, eight hundred thirty-one".