867315139 has 2 divisors, whose sum is σ = 867315140. Its totient is φ = 867315138.

The previous prime is 867315109. The next prime is 867315191. The reversal of 867315139 is 931513768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867315139 - 2⁹ = 867314627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 867315095 and 867315104.

It is not a weakly prime, because it can be changed into another prime (867315109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433657569 + 433657570.

It is an arithmetic number, because the mean of its divisors is an integer number (433657570).

Almost surely, 2^867315139 is an apocalyptic number.

867315139 is a deficient number, since it is larger than the sum of its proper divisors (1).

867315139 is an equidigital number, since it uses as much as digits as its factorization.

867315139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 867315139 is about 29450.2145832590. The cubic root of 867315139 is about 953.6572373905.

The spelling of 867315139 in words is "eight hundred sixty-seven million, three hundred fifteen thousand, one hundred thirty-nine".