1357636139 has 2 divisors, whose sum is σ = 1357636140. Its totient is φ = 1357636138.

The previous prime is 1357636129. The next prime is 1357636177. The reversal of 1357636139 is 9316367531.

It is a weak prime.

It is an emirp because it is prime and its reverse (9316367531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1357636139 - 2⁸ = 1357635883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1357636139.

It is not a weakly prime, because it can be changed into another prime (1357636129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678818069 + 678818070.

It is an arithmetic number, because the mean of its divisors is an integer number (678818070).

Almost surely, 2^1357636139 is an apocalyptic number.

1357636139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1357636139 is an equidigital number, since it uses as much as digits as its factorization.

1357636139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 44.

The square root of 1357636139 is about 36846.1142998824. The cubic root of 1357636139 is about 1107.2893681949.

The spelling of 1357636139 in words is "one billion, three hundred fifty-seven million, six hundred thirty-six thousand, one hundred thirty-nine".