1331452253 has 4 divisors (see below), whose sum is σ = 1343895840. Its totient is φ = 1319008668.

The previous prime is 1331452247. The next prime is 1331452261. The reversal of 1331452253 is 3522541331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3522541331 = 83 ⋅42440257.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331452253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331452453) 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, 6221633 + ... + 6221846.

It is an arithmetic number, because the mean of its divisors is an integer number (335973960).

Almost surely, 2^1331452253 is an apocalyptic number.

It is an amenable number.

1331452253 is a deficient number, since it is larger than the sum of its proper divisors (12443587).

1331452253 is a wasteful number, since it uses less digits than its factorization.

1331452253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12443586.

The product of its digits is 10800, while the sum is 29.

The square root of 1331452253 is about 36489.0703224952. The cubic root of 1331452253 is about 1100.1245734950.

Adding to 1331452253 its reverse (3522541331), we get a palindrome (4853993584).

The spelling of 1331452253 in words is "one billion, three hundred thirty-one million, four hundred fifty-two thousand, two hundred fifty-three".