135819264 has 104 divisors (see below), whose sum is σ = 414136960. Its totient is φ = 38780928.

The previous prime is 135819259. The next prime is 135819289. The reversal of 135819264 is 462918531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85227 + ... + 86805.

Almost surely, 2^135819264 is an apocalyptic number.

135819264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135819264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207068480).

135819264 is an abundant number, since it is smaller than the sum of its proper divisors (278317696).

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

135819264 is an equidigital number, since it uses as much as digits as its factorization.

135819264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1591 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 135819264 is about 11654.1522214188. The cubic root of 135819264 is about 514.0284116782.

The spelling of 135819264 in words is "one hundred thirty-five million, eight hundred nineteen thousand, two hundred sixty-four".