136423886 has 16 divisors (see below), whose sum is σ = 206236800. Its totient is φ = 67680888.

The previous prime is 136423813. The next prime is 136423909. The reversal of 136423886 is 688324631.

It is a happy number.

It is a super-2 number, since 2×136423886² = 37222953342681992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220085 + ... + 220703.

It is an arithmetic number, because the mean of its divisors is an integer number (12889800).

Almost surely, 2^136423886 is an apocalyptic number.

136423886 is a deficient number, since it is larger than the sum of its proper divisors (69812914).

136423886 is a wasteful number, since it uses less digits than its factorization.

136423886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303.

The product of its digits is 165888, while the sum is 41.

The square root of 136423886 is about 11680.0636128405. The cubic root of 136423886 is about 514.7900435517.

The spelling of 136423886 in words is "one hundred thirty-six million, four hundred twenty-three thousand, eight hundred eighty-six".