2130831 has 24 divisors (see below), whose sum is σ = 3435120. Its totient is φ = 1264896.

The previous prime is 2130809. The next prime is 2130853. The reversal of 2130831 is 1380312.

It is an interprime number because it is at equal distance from previous prime (2130809) and next prime (2130853).

It is not a de Polignac number, because 2130831 - 2⁶ = 2130767 is a prime.

It is a super-2 number, since 2×2130831² = 9080881501122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2541 + ... + 3273.

It is an arithmetic number, because the mean of its divisors is an integer number (143130).

2^2130831 is an apocalyptic number.

2130831 is a deficient number, since it is larger than the sum of its proper divisors (1304289).

2130831 is a wasteful number, since it uses less digits than its factorization.

2130831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2130831 is about 1459.7366200791. The cubic root of 2130831 is about 128.6815654160.

The spelling of 2130831 in words is "two million, one hundred thirty thousand, eight hundred thirty-one".