135013251 has 8 divisors (see below), whose sum is σ = 180771840. Its totient is φ = 89631752.

The previous prime is 135013237. The next prime is 135013253. The reversal of 135013251 is 152310531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135013251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135013253) 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, 93435 + ... + 94868.

It is an arithmetic number, because the mean of its divisors is an integer number (22596480).

Almost surely, 2^135013251 is an apocalyptic number.

135013251 is a deficient number, since it is larger than the sum of its proper divisors (45758589).

135013251 is a wasteful number, since it uses less digits than its factorization.

135013251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188545.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 135013251 is about 11619.5202568781. The cubic root of 135013251 is about 513.0095678178.

Adding to 135013251 its reverse (152310531), we get a palindrome (287323782).

The spelling of 135013251 in words is "one hundred thirty-five million, thirteen thousand, two hundred fifty-one".