136633998 has 24 divisors (see below), whose sum is σ = 290291832. Its totient is φ = 42865024.

The previous prime is 136633979. The next prime is 136633999. The reversal of 136633998 is 899336631.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136633999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37665 + ... + 41132.

It is an arithmetic number, because the mean of its divisors is an integer number (12095493).

Almost surely, 2^136633998 is an apocalyptic number.

136633998 is an abundant number, since it is smaller than the sum of its proper divisors (153657834).

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

136633998 is a wasteful number, since it uses less digits than its factorization.

136633998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78836 (or 78819 counting only the distinct ones).

The product of its digits is 629856, while the sum is 48.

The square root of 136633998 is about 11689.0546238778. The cubic root of 136633998 is about 515.0541910487.

The spelling of 136633998 in words is "one hundred thirty-six million, six hundred thirty-three thousand, nine hundred ninety-eight".