11997253 has 4 divisors (see below), whose sum is σ = 12036640. Its totient is φ = 11957868.

The previous prime is 11997247. The next prime is 11997269. The reversal of 11997253 is 35279911.

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: 35279911 = 2477 ⋅14243.

It is a cyclic number.

It is not a de Polignac number, because 11997253 - 2⁹ = 11996741 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 (11997233) 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, 19233 + ... + 19846.

It is an arithmetic number, because the mean of its divisors is an integer number (3009160).

Almost surely, 2^11997253 is an apocalyptic number.

It is an amenable number.

11997253 is a deficient number, since it is larger than the sum of its proper divisors (39387).

11997253 is an equidigital number, since it uses as much as digits as its factorization.

11997253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39386.

The product of its digits is 17010, while the sum is 37.

The square root of 11997253 is about 3463.7050971467. The cubic root of 11997253 is about 228.9253775662.

The spelling of 11997253 in words is "eleven million, nine hundred ninety-seven thousand, two hundred fifty-three".