31941056 has 56 divisors (see below), whose sum is σ = 73395840. Its totient is φ = 13508352.

The previous prime is 31941047. The next prime is 31941073. The reversal of 31941056 is 65014913.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36755 + ... + 37613.

It is an arithmetic number, because the mean of its divisors is an integer number (1310640).

Almost surely, 2^31941056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31941056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36697920).

31941056 is an abundant number, since it is smaller than the sum of its proper divisors (41454784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31941056 is an equidigital number, since it uses as much as digits as its factorization.

31941056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 951 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 31941056 is about 5651.6418853285. The cubic root of 31941056 is about 317.2851577331.

Adding to 31941056 its reverse (65014913), we get a palindrome (96955969).

The spelling of 31941056 in words is "thirty-one million, nine hundred forty-one thousand, fifty-six".