135923690 has 32 divisors (see below), whose sum is σ = 280226304. Its totient is φ = 46500480.

The previous prime is 135923659. The next prime is 135923699. The reversal of 135923690 is 96329531.

It is a super-2 number, since 2×135923690² = 36950499006432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135923699) 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, 34607 + ... + 38333.

It is an arithmetic number, because the mean of its divisors is an integer number (8757072).

Almost surely, 2^135923690 is an apocalyptic number.

135923690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135923690 is an abundant number, since it is smaller than the sum of its proper divisors (144302614).

135923690 is a wasteful number, since it uses less digits than its factorization.

135923690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 135923690 is about 11658.6315663546. The cubic root of 135923690 is about 514.1601165589.

The spelling of 135923690 in words is "one hundred thirty-five million, nine hundred twenty-three thousand, six hundred ninety".