135897157 has 12 divisors (see below), whose sum is σ = 152854240. Its totient is φ = 120665160.

The previous prime is 135897137. The next prime is 135897187. The reversal of 135897157 is 751798531.

It is a de Polignac number, because none of the positive numbers 2^k-135897157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135897107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7857 + ... + 18262.

Almost surely, 2^135897157 is an apocalyptic number.

It is an amenable number.

135897157 is a deficient number, since it is larger than the sum of its proper divisors (16957083).

135897157 is a wasteful number, since it uses less digits than its factorization.

135897157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26184 (or 26173 counting only the distinct ones).

The product of its digits is 264600, while the sum is 46.

The square root of 135897157 is about 11657.4935985400. The cubic root of 135897157 is about 514.1266588196.

The spelling of 135897157 in words is "one hundred thirty-five million, eight hundred ninety-seven thousand, one hundred fifty-seven".