2131497 has 12 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 1390488.

The previous prime is 2131483. The next prime is 2131513. The reversal of 2131497 is 7941312.

It is not a de Polignac number, because 2131497 - 2¹⁰ = 2130473 is a prime.

It is a super-2 number, since 2×2131497² = 9086558922018, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131497.

It is not an unprimeable number, because it can be changed into a prime (2131417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2097 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

2^2131497 is an apocalyptic number.

It is an amenable number.

2131497 is a deficient number, since it is larger than the sum of its proper divisors (1013463).

2131497 is a wasteful number, since it uses less digits than its factorization.

2131497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5089 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 2131497 is about 1459.9647256013. The cubic root of 2131497 is about 128.6949706705.

It can be divided in two parts, 2131 and 497, that added together give a triangular number (2628 = T₇₂).

The spelling of 2131497 in words is "two million, one hundred thirty-one thousand, four hundred ninety-seven".