31965941 has 4 divisors (see below), whose sum is σ = 36532512. Its totient is φ = 27399372.

The previous prime is 31965919. The next prime is 31965959. The reversal of 31965941 is 14956913.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14956913 = 59 ⋅253507.

It is not a de Polignac number, because 31965941 - 2¹⁴ = 31949557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31965895 and 31965904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31965041) 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, 2283275 + ... + 2283288.

It is an arithmetic number, because the mean of its divisors is an integer number (9133128).

Almost surely, 2^31965941 is an apocalyptic number.

It is an amenable number.

31965941 is a deficient number, since it is larger than the sum of its proper divisors (4566571).

31965941 is an equidigital number, since it uses as much as digits as its factorization.

31965941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566570.

The product of its digits is 29160, while the sum is 38.

The square root of 31965941 is about 5653.8430293032. The cubic root of 31965941 is about 317.3675343830.

Subtracting from 31965941 its reverse (14956913), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 31965941 in words is "thirty-one million, nine hundred sixty-five thousand, nine hundred forty-one".