136390550 has 24 divisors (see below), whose sum is σ = 267040200. Its totient is φ = 51684480.

The previous prime is 136390537. The next prime is 136390561. The reversal of 136390550 is 55093631.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 70835 + ... + 72734.

It is an arithmetic number, because the mean of its divisors is an integer number (11126675).

Almost surely, 2^136390550 is an apocalyptic number.

136390550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136390550 is a deficient number, since it is larger than the sum of its proper divisors (130649650).

136390550 is a wasteful number, since it uses less digits than its factorization.

136390550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143600 (or 143595 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 136390550 is about 11678.6364786305. The cubic root of 136390550 is about 514.7481094511.

The spelling of 136390550 in words is "one hundred thirty-six million, three hundred ninety thousand, five hundred fifty".