1311253 has 8 divisors (see below), whose sum is σ = 1398528. Its totient is φ = 1226544.

The previous prime is 1311251. The next prime is 1311259. The reversal of 1311253 is 3521131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311253 - 2¹ = 1311251 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 (1311251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475 + ... + 1687.

It is an arithmetic number, because the mean of its divisors is an integer number (174816).

2^1311253 is an apocalyptic number.

It is an amenable number.

1311253 is a deficient number, since it is larger than the sum of its proper divisors (87275).

1311253 is a wasteful number, since it uses less digits than its factorization.

1311253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its digits is 90, while the sum is 16.

The square root of 1311253 is about 1145.0995589904. The cubic root of 1311253 is about 109.4532928410.

Adding to 1311253 its reverse (3521131), we get a palindrome (4832384).

The spelling of 1311253 in words is "one million, three hundred eleven thousand, two hundred fifty-three".