135637013 has 4 divisors (see below), whose sum is σ = 135761088. Its totient is φ = 135512940.

The previous prime is 135637001. The next prime is 135637037. The reversal of 135637013 is 310736531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135637013 - 2¹⁰ = 135635989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135637043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60383 + ... + 62588.

It is an arithmetic number, because the mean of its divisors is an integer number (33940272).

Almost surely, 2^135637013 is an apocalyptic number.

It is an amenable number.

135637013 is a deficient number, since it is larger than the sum of its proper divisors (124075).

135637013 is a wasteful number, since it uses less digits than its factorization.

135637013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124074.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 135637013 is about 11646.3304521210. The cubic root of 135637013 is about 513.7983899973.

The spelling of 135637013 in words is "one hundred thirty-five million, six hundred thirty-seven thousand, thirteen".