2135523 has 16 divisors (see below), whose sum is σ = 3247776. Its totient is φ = 1236480.

The previous prime is 2135521. The next prime is 2135533. The reversal of 2135523 is 3255312.

It is not a de Polignac number, because 2135523 - 2¹ = 2135521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2135523.

It is not an unprimeable number, because it can be changed into a prime (2135521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (202986).

2^2135523 is an apocalyptic number.

2135523 is a deficient number, since it is larger than the sum of its proper divisors (1112253).

2135523 is a wasteful number, since it uses less digits than its factorization.

2135523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254.

The product of its digits is 900, while the sum is 21.

The square root of 2135523 is about 1461.3428755771. The cubic root of 2135523 is about 128.7759466355.

The spelling of 2135523 in words is "two million, one hundred thirty-five thousand, five hundred twenty-three".