2153131 has 4 divisors (see below), whose sum is σ = 2166192. Its totient is φ = 2140072.

The previous prime is 2153113. The next prime is 2153149. The reversal of 2153131 is 1313512.

2153131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2153113) and next prime (2153149).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153131 is a prime.

It is a super-2 number, since 2×2153131² = 9271946206322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6280 + ... + 6613.

It is an arithmetic number, because the mean of its divisors is an integer number (541548).

2^2153131 is an apocalyptic number.

2153131 is a deficient number, since it is larger than the sum of its proper divisors (13061).

2153131 is a wasteful number, since it uses less digits than its factorization.

2153131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13060.

The product of its digits is 90, while the sum is 16.

The square root of 2153131 is about 1467.3551035792. The cubic root of 2153131 is about 129.1289098569.

Adding to 2153131 its reverse (1313512), we get a palindrome (3466643).

The spelling of 2153131 in words is "two million, one hundred fifty-three thousand, one hundred thirty-one".