136360091 has 6 divisors (see below), whose sum is σ = 158623020. Its totient is φ = 116880036.

The previous prime is 136360087. The next prime is 136360099. The reversal of 136360091 is 190063631.

It is not a de Polignac number, because 136360091 - 2² = 136360087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136360099) 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, 1391381 + ... + 1391478.

It is an arithmetic number, because the mean of its divisors is an integer number (26437170).

Almost surely, 2^136360091 is an apocalyptic number.

136360091 is a deficient number, since it is larger than the sum of its proper divisors (22262929).

136360091 is an equidigital number, since it uses as much as digits as its factorization.

136360091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782873 (or 2782866 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 136360091 is about 11677.3323580345. The cubic root of 136360091 is about 514.7097884190.

The spelling of 136360091 in words is "one hundred thirty-six million, three hundred sixty thousand, ninety-one".