136261352109 has 24 divisors (see below), whose sum is σ = 191870819712. Its totient is φ = 86004354240.

The previous prime is 136261352093. The next prime is 136261352111. The reversal of 136261352109 is 901253162631.

It is not a de Polignac number, because 136261352109 - 2⁴ = 136261352093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136261350109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1674649 + ... + 1754129.

It is an arithmetic number, because the mean of its divisors is an integer number (7994617488).

Almost surely, 2^136261352109 is an apocalyptic number.

136261352109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

136261352109 is a deficient number, since it is larger than the sum of its proper divisors (55609467603).

136261352109 is a wasteful number, since it uses less digits than its factorization.

136261352109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81105 (or 81086 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 136261352109 in words is "one hundred thirty-six billion, two hundred sixty-one million, three hundred fifty-two thousand, one hundred nine".