135251351 has 4 divisors (see below), whose sum is σ = 135527304. Its totient is φ = 134975400.

The previous prime is 135251341. The next prime is 135251381. The reversal of 135251351 is 153152531.

It is a happy number.

135251351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135251351 - 2⁶ = 135251287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135251351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135251321) 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, 137240 + ... + 138221.

It is an arithmetic number, because the mean of its divisors is an integer number (33881826).

Almost surely, 2^135251351 is an apocalyptic number.

135251351 is a deficient number, since it is larger than the sum of its proper divisors (275953).

135251351 is an equidigital number, since it uses as much as digits as its factorization.

135251351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275952.

The product of its digits is 2250, while the sum is 26.

The square root of 135251351 is about 11629.7614334947. The cubic root of 135251351 is about 513.3109600732.

The spelling of 135251351 in words is "one hundred thirty-five million, two hundred fifty-one thousand, three hundred fifty-one".