136320590 has 32 divisors (see below), whose sum is σ = 290105280. Its totient is φ = 45126144.

The previous prime is 136320589. The next prime is 136320593. The reversal of 136320590 is 95023631.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136320593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31547 + ... + 35606.

It is an arithmetic number, because the mean of its divisors is an integer number (9065790).

Almost surely, 2^136320590 is an apocalyptic number.

136320590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136320590 is an abundant number, since it is smaller than the sum of its proper divisors (153784690).

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

136320590 is a wasteful number, since it uses less digits than its factorization.

136320590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67196.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 136320590 is about 11675.6408817675. The cubic root of 136320590 is about 514.6600829792.

The spelling of 136320590 in words is "one hundred thirty-six million, three hundred twenty thousand, five hundred ninety".