316485139 has 4 divisors (see below), whose sum is σ = 320491360. Its totient is φ = 312478920.

The previous prime is 316485137. The next prime is 316485173. The reversal of 316485139 is 931584613.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 316485139 - 2¹ = 316485137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316485137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002992 + ... + 2003149.

It is an arithmetic number, because the mean of its divisors is an integer number (80122840).

Almost surely, 2^316485139 is an apocalyptic number.

316485139 is a deficient number, since it is larger than the sum of its proper divisors (4006221).

316485139 is an equidigital number, since it uses as much as digits as its factorization.

316485139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006220.

The product of its digits is 77760, while the sum is 40.

The square root of 316485139 is about 17790.0292017748. The cubic root of 316485139 is about 681.4768500313.

The spelling of 316485139 in words is "three hundred sixteen million, four hundred eighty-five thousand, one hundred thirty-nine".