31614100387 has 4 divisors (see below), whose sum is σ = 31730757856. Its totient is φ = 31497442920.

The previous prime is 31614100289. The next prime is 31614100403. The reversal of 31614100387 is 78300141613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78300141613 = 29383 ⋅2664811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31614100387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31614100187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58328328 + ... + 58328869.

It is an arithmetic number, because the mean of its divisors is an integer number (7932689464).

Almost surely, 2^31614100387 is an apocalyptic number.

31614100387 is a deficient number, since it is larger than the sum of its proper divisors (116657469).

31614100387 is a wasteful number, since it uses less digits than its factorization.

31614100387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116657468.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 31614100387 in words is "thirty-one billion, six hundred fourteen million, one hundred thousand, three hundred eighty-seven".