135257637 has 8 divisors (see below), whose sum is σ = 189835360. Its totient is φ = 85425840.

The previous prime is 135257621. The next prime is 135257659. The reversal of 135257637 is 736752531.

135257637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135257637 - 2⁴ = 135257621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135257595 and 135257604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135250637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186414 + ... + 1186527.

It is an arithmetic number, because the mean of its divisors is an integer number (23729420).

Almost surely, 2^135257637 is an apocalyptic number.

It is an amenable number.

135257637 is a deficient number, since it is larger than the sum of its proper divisors (54577723).

135257637 is a wasteful number, since it uses less digits than its factorization.

135257637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372963.

The product of its digits is 132300, while the sum is 39.

The square root of 135257637 is about 11630.0316852535. The cubic root of 135257637 is about 513.3189122371.

The spelling of 135257637 in words is "one hundred thirty-five million, two hundred fifty-seven thousand, six hundred thirty-seven".