2135256 has 16 divisors (see below), whose sum is σ = 5338200. Its totient is φ = 711744.

The previous prime is 2135227. The next prime is 2135267. The reversal of 2135256 is 6525312.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 88969 = 2135256 / (2 + 1 + 3 + 5 + 2 + 5 + 6).

It is a d-powerful number, because it can be written as 2⁸ + 1 + 3¹¹ + 5⁴ + 2¹² + 5⁹ + 6 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44461 + ... + 44508.

2^2135256 is an apocalyptic number.

It is an amenable number.

2135256 is an abundant number, since it is smaller than the sum of its proper divisors (3202944).

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

2135256 is a wasteful number, since it uses less digits than its factorization.

2135256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88978 (or 88974 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 2135256 is about 1461.2515183910. The cubic root of 2135256 is about 128.7705795488.

It can be divided in two parts, 213525 and 6, that added together give a triangular number (213531 = T₆₅₃).

The spelling of 2135256 in words is "two million, one hundred thirty-five thousand, two hundred fifty-six".