135657554181252 has 24 divisors (see below), whose sum is σ = 316534482551616. Its totient is φ = 45219157661088.

The previous prime is 135657554181251. The next prime is 135657554181263. The reversal of 135657554181252 is 252181455756531.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (135657554181251) 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, 34203913 + ... + 37963439.

It is an arithmetic number, because the mean of its divisors is an integer number (13188936772984).

Almost surely, 2^{135657554181252} is an apocalyptic number.

135657554181252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135657554181252 is an abundant number, since it is smaller than the sum of its proper divisors (180876928370364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135657554181252 is a wasteful number, since it uses less digits than its factorization.

135657554181252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766507 (or 6766505 counting only the distinct ones).

The product of its digits is 50400000, while the sum is 60.

The spelling of 135657554181252 in words is "one hundred thirty-five trillion, six hundred fifty-seven billion, five hundred fifty-four million, one hundred eighty-one thousand, two hundred fifty-two".