135559723 has 8 divisors (see below), whose sum is σ = 152335008. Its totient is φ = 119691264.

The previous prime is 135559709. The next prime is 135559729. The reversal of 135559723 is 327955531.

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

It is not a de Polignac number, because 135559723 - 2⁹ = 135559211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135559729) 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, 226390 + ... + 226987.

It is an arithmetic number, because the mean of its divisors is an integer number (19041876).

Almost surely, 2^135559723 is an apocalyptic number.

135559723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135559723 is a deficient number, since it is larger than the sum of its proper divisors (16775285).

135559723 is a wasteful number, since it uses less digits than its factorization.

135559723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453413.

The product of its digits is 141750, while the sum is 40.

The square root of 135559723 is about 11643.0117667208. The cubic root of 135559723 is about 513.7007789249.

The spelling of 135559723 in words is "one hundred thirty-five million, five hundred fifty-nine thousand, seven hundred twenty-three".