31318928147 has 8 divisors (see below), whose sum is σ = 35712081216. Its totient is φ = 27209204352.

The previous prime is 31318928099. The next prime is 31318928153. The reversal of 31318928147 is 74182981313.

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

It is a cyclic number.

It is not a de Polignac number, because 31318928147 - 2¹⁸ = 31318666003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31318928947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70857083 + ... + 70857524.

It is an arithmetic number, because the mean of its divisors is an integer number (4464010152).

Almost surely, 2^31318928147 is an apocalyptic number.

31318928147 is a deficient number, since it is larger than the sum of its proper divisors (4393153069).

31318928147 is a wasteful number, since it uses less digits than its factorization.

31318928147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141714637.

The product of its digits is 290304, while the sum is 47.

The spelling of 31318928147 in words is "thirty-one billion, three hundred eighteen million, nine hundred twenty-eight thousand, one hundred forty-seven".