136079997 has 4 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 90719996.

The previous prime is 136079953. The next prime is 136080011. The reversal of 136079997 is 799970631.

136079997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799970631 = 3 ⋅266656877.

It is a cyclic number.

It is not a de Polignac number, because 136079997 - 2¹⁰ = 136078973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136079947) 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, 22679997 + ... + 22680002.

It is an arithmetic number, because the mean of its divisors is an integer number (45360000).

Almost surely, 2^136079997 is an apocalyptic number.

It is an amenable number.

136079997 is a deficient number, since it is larger than the sum of its proper divisors (45360003).

136079997 is an equidigital number, since it uses as much as digits as its factorization.

136079997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45360002.

The product of its (nonzero) digits is 642978, while the sum is 51.

The square root of 136079997 is about 11665.3331285480. Note that the first 3 decimals coincide. The cubic root of 136079997 is about 514.3571291590.

The spelling of 136079997 in words is "one hundred thirty-six million, seventy-nine thousand, nine hundred ninety-seven".