31106052 has 48 divisors (see below), whose sum is σ = 81002880. Its totient is φ = 10322784.

The previous prime is 31106041. The next prime is 31106099. The reversal of 31106052 is 25060113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31153 + ... + 32135.

It is an arithmetic number, because the mean of its divisors is an integer number (1687560).

Almost surely, 2^31106052 is an apocalyptic number.

It is an amenable number.

31106052 is an abundant number, since it is smaller than the sum of its proper divisors (49896828).

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

31106052 is a wasteful number, since it uses less digits than its factorization.

31106052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 31106052 is about 5577.2799822136. The cubic root of 31106052 is about 314.4958829983.

Adding to 31106052 its reverse (25060113), we get a palindrome (56166165).

The spelling of 31106052 in words is "thirty-one million, one hundred six thousand, fifty-two".