135990072 has 48 divisors (see below), whose sum is σ = 389975040. Its totient is φ = 42663168.

The previous prime is 135990061. The next prime is 135990097. The reversal of 135990072 is 270099531.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 54328 + ... + 56775.

It is an arithmetic number, because the mean of its divisors is an integer number (8124480).

Almost surely, 2^135990072 is an apocalyptic number.

135990072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135990072 is an abundant number, since it is smaller than the sum of its proper divisors (253984968).

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

135990072 is a wasteful number, since it uses less digits than its factorization.

135990072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111132 (or 111125 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 135990072 is about 11661.4781224337. The cubic root of 135990072 is about 514.2438042567.

The spelling of 135990072 in words is "one hundred thirty-five million, nine hundred ninety thousand, seventy-two".