1253523 has 16 divisors (see below), whose sum is σ = 1794816. Its totient is φ = 776160.

The previous prime is 1253521. The next prime is 1253557. The reversal of 1253523 is 3253521.

It is not a de Polignac number, because 1253523 - 2¹ = 1253521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253523.

It is not an unprimeable number, because it can be changed into a prime (1253521) 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, 2308 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (112176).

2^1253523 is an apocalyptic number.

1253523 is a deficient number, since it is larger than the sum of its proper divisors (541293).

1253523 is a wasteful number, since it uses less digits than its factorization.

1253523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

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

The square root of 1253523 is about 1119.6084136876. The cubic root of 1253523 is about 107.8228405541.

It can be divided in two parts, 12 and 53523, that added together give a palindrome (53535).

The spelling of 1253523 in words is "one million, two hundred fifty-three thousand, five hundred twenty-three".