135859956 has 24 divisors (see below), whose sum is σ = 333691680. Its totient is φ = 42903072.

The previous prime is 135859951. The next prime is 135859963. The reversal of 135859956 is 659958531.

It is a junction number, because it is equal to n+sod(n) for n = 135859899 and 135859908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135859951) 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, 297711 + ... + 298166.

It is an arithmetic number, because the mean of its divisors is an integer number (13903820).

Almost surely, 2^135859956 is an apocalyptic number.

It is an amenable number.

135859956 is an abundant number, since it is smaller than the sum of its proper divisors (197831724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135859956 is a wasteful number, since it uses less digits than its factorization.

135859956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595903 (or 595901 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 51.

The square root of 135859956 is about 11655.8979062104. The cubic root of 135859956 is about 514.0797415484.

The spelling of 135859956 in words is "one hundred thirty-five million, eight hundred fifty-nine thousand, nine hundred fifty-six".