2159131 has 8 divisors (see below), whose sum is σ = 2337104. Its totient is φ = 1982880.

The previous prime is 2159093. The next prime is 2159147. The reversal of 2159131 is 1319512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2159131 - 2¹⁵ = 2126363 is a prime.

It is a super-2 number, since 2×2159131² = 9323693350322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2159191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3721 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (292138).

2^2159131 is an apocalyptic number.

2159131 is a deficient number, since it is larger than the sum of its proper divisors (177973).

2159131 is a wasteful number, since it uses less digits than its factorization.

2159131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861.

The product of its digits is 270, while the sum is 22.

The square root of 2159131 is about 1469.3981761252. The cubic root of 2159131 is about 129.2487438568.

The spelling of 2159131 in words is "two million, one hundred fifty-nine thousand, one hundred thirty-one".