136427153421 has 16 divisors (see below), whose sum is σ = 195990471936. Its totient is φ = 83914426176.

The previous prime is 136427153417. The next prime is 136427153437. The reversal of 136427153421 is 124351724631.

It is not a de Polignac number, because 136427153421 - 2² = 136427153417 is a prime.

It is a super-2 number, since 2×136427153421² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 136427153421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136427153321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767370 + ... + 928283.

It is an arithmetic number, because the mean of its divisors is an integer number (12249404496).

Almost surely, 2^136427153421 is an apocalyptic number.

It is an amenable number.

136427153421 is a deficient number, since it is larger than the sum of its proper divisors (59563318515).

136427153421 is a wasteful number, since it uses less digits than its factorization.

136427153421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697732.

The product of its digits is 120960, while the sum is 39.

The spelling of 136427153421 in words is "one hundred thirty-six billion, four hundred twenty-seven million, one hundred fifty-three thousand, four hundred twenty-one".