136250661 has 8 divisors (see below), whose sum is σ = 181725120. Its totient is φ = 90804992.

The previous prime is 136250659. The next prime is 136250669. The reversal of 136250661 is 166052631.

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

It is a cyclic number.

It is not a de Polignac number, because 136250661 - 2¹ = 136250659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136250669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9160 + ... + 18878.

It is an arithmetic number, because the mean of its divisors is an integer number (22715640).

Almost surely, 2^136250661 is an apocalyptic number.

It is an amenable number.

136250661 is a deficient number, since it is larger than the sum of its proper divisors (45474459).

136250661 is an equidigital number, since it uses as much as digits as its factorization.

136250661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14395.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 136250661 is about 11672.6458440235. The cubic root of 136250661 is about 514.5720654106.

The spelling of 136250661 in words is "one hundred thirty-six million, two hundred fifty thousand, six hundred sixty-one".