136711373261 has 4 divisors (see below), whose sum is σ = 136726119132. Its totient is φ = 136696627392.

The previous prime is 136711373251. The next prime is 136711373263. The reversal of 136711373261 is 162373117631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162373117631 = 179 ⋅907112389.

It can be written as a sum of positive squares in 2 ways, for example, as 101407218025 + 35304155236 = 318445^2 + 187894^2 .

It is a cyclic number.

It is not a de Polignac number, because 136711373261 - 2²² = 136707178957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136711373263) 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, 7359020 + ... + 7377573.

It is an arithmetic number, because the mean of its divisors is an integer number (34181529783).

Almost surely, 2^136711373261 is an apocalyptic number.

It is an amenable number.

136711373261 is a deficient number, since it is larger than the sum of its proper divisors (14745871).

136711373261 is an equidigital number, since it uses as much as digits as its factorization.

136711373261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14745870.

The product of its digits is 95256, while the sum is 41.

The spelling of 136711373261 in words is "one hundred thirty-six billion, seven hundred eleven million, three hundred seventy-three thousand, two hundred sixty-one".