31140127 has 8 divisors (see below), whose sum is σ = 31971456. Its totient is φ = 30313752.

The previous prime is 31140077. The next prime is 31140157. The reversal of 31140127 is 72104113.

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-31140127 is a prime.

It is a super-2 number, since 2×31140127² = 1939415019152258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31140157) 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, 13878 + ... + 15964.

It is an arithmetic number, because the mean of its divisors is an integer number (3996432).

Almost surely, 2^31140127 is an apocalyptic number.

31140127 is a deficient number, since it is larger than the sum of its proper divisors (831329).

31140127 is a wasteful number, since it uses less digits than its factorization.

31140127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 31140127 is about 5580.3339505804. Note that the first 3 decimals coincide. The cubic root of 31140127 is about 314.6106788425.

The spelling of 31140127 in words is "thirty-one million, one hundred forty thousand, one hundred twenty-seven".