2131953 has 12 divisors (see below), whose sum is σ = 3020880. Its totient is φ = 1337152.

The previous prime is 2131951. The next prime is 2131979. The reversal of 2131953 is 3591312.

It is a happy number.

It is not a de Polignac number, because 2131953 - 2¹ = 2131951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363 + ... + 2096.

It is an arithmetic number, because the mean of its divisors is an integer number (251740).

2^2131953 is an apocalyptic number.

It is an amenable number.

2131953 is a deficient number, since it is larger than the sum of its proper divisors (888927).

2131953 is a wasteful number, since it uses less digits than its factorization.

2131953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2479 counting only the distinct ones).

The product of its digits is 810, while the sum is 24.

The square root of 2131953 is about 1460.1208854064. The cubic root of 2131953 is about 128.7041474325.

The spelling of 2131953 in words is "two million, one hundred thirty-one thousand, nine hundred fifty-three".