136860689 has 8 divisors (see below), whose sum is σ = 156483648. Its totient is φ = 117255600.

The previous prime is 136860679. The next prime is 136860697. The reversal of 136860689 is 986068631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136860689 - 2⁴ = 136860673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136860679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24419 + ... + 29495.

It is an arithmetic number, because the mean of its divisors is an integer number (19560456).

Almost surely, 2^136860689 is an apocalyptic number.

It is an amenable number.

136860689 is a deficient number, since it is larger than the sum of its proper divisors (19622959).

136860689 is an equidigital number, since it uses as much as digits as its factorization.

136860689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8935.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 136860689 is about 11698.7473261029. The cubic root of 136860689 is about 515.3388777280.

The spelling of 136860689 in words is "one hundred thirty-six million, eight hundred sixty thousand, six hundred eighty-nine".