135232990 has 32 divisors (see below), whose sum is σ = 250076160. Its totient is φ = 52634400.

The previous prime is 135232957. The next prime is 135232997. The reversal of 135232990 is 99232531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135232997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54885 + ... + 57295.

It is an arithmetic number, because the mean of its divisors is an integer number (7814880).

Almost surely, 2^135232990 is an apocalyptic number.

135232990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135232990 is a deficient number, since it is larger than the sum of its proper divisors (114843170).

135232990 is a wasteful number, since it uses less digits than its factorization.

135232990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 135232990 is about 11628.9720095974. The cubic root of 135232990 is about 513.2877309052.

The spelling of 135232990 in words is "one hundred thirty-five million, two hundred thirty-two thousand, nine hundred ninety".