135568390 has 16 divisors (see below), whose sum is σ = 245121408. Its totient is φ = 53983296.

The previous prime is 135568339. The next prime is 135568393. The reversal of 135568390 is 93865531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135568393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28167 + ... + 32626.

It is an arithmetic number, because the mean of its divisors is an integer number (15320088).

Almost surely, 2^135568390 is an apocalyptic number.

135568390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135568390 is a deficient number, since it is larger than the sum of its proper divisors (109553018).

135568390 is a wasteful number, since it uses less digits than its factorization.

135568390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61023.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 135568390 is about 11643.3839582829. The cubic root of 135568390 is about 513.7117264976.

The spelling of 135568390 in words is "one hundred thirty-five million, five hundred sixty-eight thousand, three hundred ninety".