135970739 has 2 divisors, whose sum is σ = 135970740. Its totient is φ = 135970738.

The previous prime is 135970717. The next prime is 135970789. The reversal of 135970739 is 937079531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135970739 - 2¹² = 135966643 is a prime.

It is a super-2 number, since 2×135970739² = 36976083728412242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135970739.

It is not a weakly prime, because it can be changed into another prime (135970789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67985369 + 67985370.

It is an arithmetic number, because the mean of its divisors is an integer number (67985370).

Almost surely, 2^135970739 is an apocalyptic number.

135970739 is a deficient number, since it is larger than the sum of its proper divisors (1).

135970739 is an equidigital number, since it uses as much as digits as its factorization.

135970739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 135970739 is about 11660.6491671776. The cubic root of 135970739 is about 514.2194339811.

The spelling of 135970739 in words is "one hundred thirty-five million, nine hundred seventy thousand, seven hundred thirty-nine".