31132117 has 8 divisors (see below), whose sum is σ = 33523200. Its totient is φ = 28803264.

The previous prime is 31132103. The next prime is 31132141. The reversal of 31132117 is 71123113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31132117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31132094 and 31132103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31132187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14517 + ... + 16522.

It is an arithmetic number, because the mean of its divisors is an integer number (4190400).

Almost surely, 2^31132117 is an apocalyptic number.

It is an amenable number.

31132117 is a deficient number, since it is larger than the sum of its proper divisors (2391083).

31132117 is a wasteful number, since it uses less digits than its factorization.

31132117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31115.

The product of its digits is 126, while the sum is 19.

The square root of 31132117 is about 5579.6162054392. The cubic root of 31132117 is about 314.5837013499.

The spelling of 31132117 in words is "thirty-one million, one hundred thirty-two thousand, one hundred seventeen".