2131097 has 4 divisors (see below), whose sum is σ = 2243280. Its totient is φ = 2018916.

The previous prime is 2131093. The next prime is 2131099. The reversal of 2131097 is 7901312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131097 - 2² = 2131093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131093) 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 3 ways as a sum of consecutive naturals, for example, 56063 + ... + 56100.

It is an arithmetic number, because the mean of its divisors is an integer number (560820).

2^2131097 is an apocalyptic number.

It is an amenable number.

2131097 is a deficient number, since it is larger than the sum of its proper divisors (112183).

2131097 is a wasteful number, since it uses less digits than its factorization.

2131097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112182.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2131097 is about 1459.8277295626. The cubic root of 2131097 is about 128.6869198016.

The spelling of 2131097 in words is "two million, one hundred thirty-one thousand, ninety-seven".