136122431451 has 4 divisors (see below), whose sum is σ = 181496575272. Its totient is φ = 90748287632.

The previous prime is 136122431449. The next prime is 136122431479. The reversal of 136122431451 is 154134221631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136122431451 - 2¹ = 136122431449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136122431351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22687071906 + ... + 22687071911.

It is an arithmetic number, because the mean of its divisors is an integer number (45374143818).

Almost surely, 2^136122431451 is an apocalyptic number.

136122431451 is a deficient number, since it is larger than the sum of its proper divisors (45374143821).

136122431451 is an equidigital number, since it uses as much as digits as its factorization.

136122431451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45374143820.

The product of its digits is 17280, while the sum is 33.

The spelling of 136122431451 in words is "one hundred thirty-six billion, one hundred twenty-two million, four hundred thirty-one thousand, four hundred fifty-one".