136431243155 has 32 divisors (see below), whose sum is σ = 174956060160. Its totient is φ = 101830659840.

The previous prime is 136431243127. The next prime is 136431243161. The reversal of 136431243155 is 551342134631.

It is not a de Polignac number, because 136431243155 - 2¹⁰ = 136431242131 is a prime.

It is a super-2 number, since 2×136431243155² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6309272 + ... + 6330858.

It is an arithmetic number, because the mean of its divisors is an integer number (5467376880).

Almost surely, 2^136431243155 is an apocalyptic number.

136431243155 is a deficient number, since it is larger than the sum of its proper divisors (38524817005).

136431243155 is a wasteful number, since it uses less digits than its factorization.

136431243155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22619.

The product of its digits is 129600, while the sum is 38.

Adding to 136431243155 its reverse (551342134631), we get a palindrome (687773377786).

The spelling of 136431243155 in words is "one hundred thirty-six billion, four hundred thirty-one million, two hundred forty-three thousand, one hundred fifty-five".