136421623132 has 24 divisors (see below), whose sum is σ = 251328828240. Its totient is φ = 64614124800.

The previous prime is 136421623109. The next prime is 136421623139. The reversal of 136421623132 is 231326124631.

It is a happy number.

It is a super-2 number, since 2×136421623132² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136421623139) 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, 695748 + ... + 870004.

It is an arithmetic number, because the mean of its divisors is an integer number (10472034510).

Almost surely, 2^136421623132 is an apocalyptic number.

It is an amenable number.

136421623132 is a deficient number, since it is larger than the sum of its proper divisors (114907205108).

136421623132 is a wasteful number, since it uses less digits than its factorization.

136421623132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184581 (or 184579 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

Adding to 136421623132 its reverse (231326124631), we get a palindrome (367747747763).

The spelling of 136421623132 in words is "one hundred thirty-six billion, four hundred twenty-one million, six hundred twenty-three thousand, one hundred thirty-two".