135253739 has 2 divisors, whose sum is σ = 135253740. Its totient is φ = 135253738.

The previous prime is 135253697. The next prime is 135253747. The reversal of 135253739 is 937352531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135253739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135256739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67626869 + 67626870.

It is an arithmetic number, because the mean of its divisors is an integer number (67626870).

Almost surely, 2^135253739 is an apocalyptic number.

135253739 is a deficient number, since it is larger than the sum of its proper divisors (1).

135253739 is an equidigital number, since it uses as much as digits as its factorization.

135253739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 38.

The square root of 135253739 is about 11629.8641006677. The cubic root of 135253739 is about 513.3139810643.

The spelling of 135253739 in words is "one hundred thirty-five million, two hundred fifty-three thousand, seven hundred thirty-nine".