136426661 has 8 divisors (see below), whose sum is σ = 156006144. Its totient is φ = 116869680.

The previous prime is 136426657. The next prime is 136426663. The reversal of 136426661 is 166624631.

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 136426661 - 2² = 136426657 is a prime.

It is a super-2 number, since 2×136426661² = 37224467663217842, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136426663) 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, 10436 + ... + 19538.

It is an arithmetic number, because the mean of its divisors is an integer number (19500768).

Almost surely, 2^136426661 is an apocalyptic number.

It is an amenable number.

136426661 is a deficient number, since it is larger than the sum of its proper divisors (19579483).

136426661 is an equidigital number, since it uses as much as digits as its factorization.

136426661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11251.

The product of its digits is 31104, while the sum is 35.

The square root of 136426661 is about 11680.1824043976. The cubic root of 136426661 is about 514.7935339783.

The spelling of 136426661 in words is "one hundred thirty-six million, four hundred twenty-six thousand, six hundred sixty-one".