135252351 has 24 divisors (see below), whose sum is σ = 219544416. Its totient is φ = 79611840.

The previous prime is 135252307. The next prime is 135252371. The reversal of 135252351 is 153252531.

It is a happy number.

135252351 is a `hidden beast` number, since 135 + 2 + 523 + 5 + 1 = 666.

It is not a de Polignac number, because 135252351 - 2⁷ = 135252223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135252301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22440 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (9147684).

Almost surely, 2^135252351 is an apocalyptic number.

135252351 is a deficient number, since it is larger than the sum of its proper divisors (84292065).

135252351 is a wasteful number, since it uses less digits than its factorization.

135252351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50303 (or 50300 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 135252351 is about 11629.8044265585. The cubic root of 135252351 is about 513.3122251492.

It can be divided in two parts, 13525 and 2351, that added together give a square (15876 = 126²).

The spelling of 135252351 in words is "one hundred thirty-five million, two hundred fifty-two thousand, three hundred fifty-one".