31156134 has 16 divisors (see below), whose sum is σ = 62865072. Its totient is φ = 10293248.

The previous prime is 31156117. The next prime is 31156157. The reversal of 31156134 is 43165113.

It is a Curzon number.

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, 22299 + ... + 23654.

It is an arithmetic number, because the mean of its divisors is an integer number (3929067).

Almost surely, 2^31156134 is an apocalyptic number.

31156134 is an abundant number, since it is smaller than the sum of its proper divisors (31708938).

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

31156134 is a wasteful number, since it uses less digits than its factorization.

31156134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46071.

The product of its digits is 1080, while the sum is 24.

The square root of 31156134 is about 5581.7679994783. The cubic root of 31156134 is about 314.6645761875.

The spelling of 31156134 in words is "thirty-one million, one hundred fifty-six thousand, one hundred thirty-four".