136418988 has 12 divisors (see below), whose sum is σ = 318311000. Its totient is φ = 45472992.

The previous prime is 136418981. The next prime is 136419007. The reversal of 136418988 is 889814631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×136418988² = 37220280573888288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136418981) 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 3 ways as a sum of consecutive naturals, for example, 5684113 + ... + 5684136.

Almost surely, 2^136418988 is an apocalyptic number.

It is an amenable number.

136418988 is an abundant number, since it is smaller than the sum of its proper divisors (181892012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136418988 is a wasteful number, since it uses less digits than its factorization.

136418988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368256 (or 11368254 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 136418988 is about 11679.8539374429. The cubic root of 136418988 is about 514.7838826760.

The spelling of 136418988 in words is "one hundred thirty-six million, four hundred eighteen thousand, nine hundred eighty-eight".