1326360253 has 4 divisors (see below), whose sum is σ = 1327029760. Its totient is φ = 1325690748.

The previous prime is 1326360239. The next prime is 1326360307. The reversal of 1326360253 is 3520636231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1326360253 - 2²⁵ = 1292805821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326360223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331773 + ... + 335746.

It is an arithmetic number, because the mean of its divisors is an integer number (331757440).

Almost surely, 2^1326360253 is an apocalyptic number.

It is an amenable number.

1326360253 is a deficient number, since it is larger than the sum of its proper divisors (669507).

1326360253 is an equidigital number, since it uses as much as digits as its factorization.

1326360253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669506.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 1326360253 is about 36419.2291653736. The cubic root of 1326360253 is about 1098.7203447072.

Adding to 1326360253 its reverse (3520636231), we get a palindrome (4846996484).

The spelling of 1326360253 in words is "one billion, three hundred twenty-six million, three hundred sixty thousand, two hundred fifty-three".