135615371 has 2 divisors, whose sum is σ = 135615372. Its totient is φ = 135615370.

The previous prime is 135615367. The next prime is 135615401. The reversal of 135615371 is 173516531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135615371 - 2² = 135615367 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135615301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67807685 + 67807686.

It is an arithmetic number, because the mean of its divisors is an integer number (67807686).

Almost surely, 2^135615371 is an apocalyptic number.

135615371 is a deficient number, since it is larger than the sum of its proper divisors (1).

135615371 is an equidigital number, since it uses as much as digits as its factorization.

135615371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 135615371 is about 11645.4012811925. The cubic root of 135615371 is about 513.7710616253.

The spelling of 135615371 in words is "one hundred thirty-five million, six hundred fifteen thousand, three hundred seventy-one".