31145116 has 6 divisors (see below), whose sum is σ = 54503960. Its totient is φ = 15572556.

The previous prime is 31145113. The next prime is 31145129. The reversal of 31145116 is 61154113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31145113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3893136 + ... + 3893143.

Almost surely, 2^31145116 is an apocalyptic number.

It is an amenable number.

31145116 is a deficient number, since it is larger than the sum of its proper divisors (23358844).

31145116 is a wasteful number, since it uses less digits than its factorization.

31145116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786283 (or 7786281 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 31145116 is about 5580.7809489354. The cubic root of 31145116 is about 314.6274793399.

Adding to 31145116 its reverse (61154113), we get a palindrome (92299229).

The spelling of 31145116 in words is "thirty-one million, one hundred forty-five thousand, one hundred sixteen".