136700491149 has 6 divisors (see below), whose sum is σ = 197456265006. Its totient is φ = 91133660760.

The previous prime is 136700491139. The next prime is 136700491157. The reversal of 136700491149 is 941194007631.

It is a happy number.

136700491149 is a `hidden beast` number, since 13 + 6 + 7 + 0 + 0 + 491 + 149 = 666.

It can be written as a sum of positive squares in only one way, i.e., 87908099049 + 48792392100 = 296493^2 + 220890^2 .

It is not a de Polignac number, because 136700491149 - 2⁷ = 136700491021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136700491139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7594471722 + ... + 7594471739.

It is an arithmetic number, because the mean of its divisors is an integer number (32909377501).

Almost surely, 2^136700491149 is an apocalyptic number.

It is an amenable number.

136700491149 is a deficient number, since it is larger than the sum of its proper divisors (60755773857).

136700491149 is a wasteful number, since it uses less digits than its factorization.

136700491149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15188943467 (or 15188943464 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 136700491149 in words is "one hundred thirty-six billion, seven hundred million, four hundred ninety-one thousand, one hundred forty-nine".