136928697 has 4 divisors (see below), whose sum is σ = 182571600. Its totient is φ = 91285796.

The previous prime is 136928663. The next prime is 136928711. The reversal of 136928697 is 796829631.

136928697 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.

It is a cyclic number.

It is not a de Polignac number, because 136928697 - 2¹⁵ = 136895929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136928657) 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, 22821447 + ... + 22821452.

It is an arithmetic number, because the mean of its divisors is an integer number (45642900).

Almost surely, 2^136928697 is an apocalyptic number.

It is an amenable number.

136928697 is a deficient number, since it is larger than the sum of its proper divisors (45642903).

136928697 is an equidigital number, since it uses as much as digits as its factorization.

136928697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45642902.

The product of its digits is 979776, while the sum is 51.

The square root of 136928697 is about 11701.6536010942. The cubic root of 136928697 is about 515.4242233036.

The spelling of 136928697 in words is "one hundred thirty-six million, nine hundred twenty-eight thousand, six hundred ninety-seven".