2137081 has 4 divisors (see below), whose sum is σ = 2149200. Its totient is φ = 2124964.

The previous prime is 2137073. The next prime is 2137117. The reversal of 2137081 is 1807312.

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 2137081 - 2³ = 2137073 is a prime.

It is a super-2 number, since 2×2137081² = 9134230401122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5791 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (537300).

2^2137081 is an apocalyptic number.

It is an amenable number.

2137081 is a deficient number, since it is larger than the sum of its proper divisors (12119).

2137081 is a wasteful number, since it uses less digits than its factorization.

2137081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 2137081 is about 1461.8758497219. The cubic root of 2137081 is about 128.8072557735.

The spelling of 2137081 in words is "two million, one hundred thirty-seven thousand, eighty-one".