135423659 has 8 divisors (see below), whose sum is σ = 162915840. Its totient is φ = 109967976.

The previous prime is 135423653. The next prime is 135423667. The reversal of 135423659 is 956324531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135423659 - 2¹⁶ = 135358123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135423653) 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, 508979 + ... + 509244.

It is an arithmetic number, because the mean of its divisors is an integer number (20364480).

Almost surely, 2^135423659 is an apocalyptic number.

135423659 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

135423659 is a deficient number, since it is larger than the sum of its proper divisors (27492181).

135423659 is a wasteful number, since it uses less digits than its factorization.

135423659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018249.

The product of its digits is 97200, while the sum is 38.

The square root of 135423659 is about 11637.1671380968. The cubic root of 135423659 is about 513.5288508141.

The spelling of 135423659 in words is "one hundred thirty-five million, four hundred twenty-three thousand, six hundred fifty-nine".