11912653 has 4 divisors (see below), whose sum is σ = 11919708. Its totient is φ = 11905600.

The previous prime is 11912633. The next prime is 11912669. The reversal of 11912653 is 35621911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3374569 + 8538084 = 1837^2 + 2922^2 .

It is a cyclic number.

It is not a de Polignac number, because 11912653 - 2¹³ = 11904461 is a prime.

It is a super-2 number, since 2×11912653² = 283822602996818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11912603) 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, 675 + ... + 4927.

It is an arithmetic number, because the mean of its divisors is an integer number (2979927).

Almost surely, 2^11912653 is an apocalyptic number.

It is an amenable number.

11912653 is a deficient number, since it is larger than the sum of its proper divisors (7055).

11912653 is an equidigital number, since it uses as much as digits as its factorization.

11912653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7054.

The product of its digits is 1620, while the sum is 28.

The square root of 11912653 is about 3451.4711356174. The cubic root of 11912653 is about 228.3860099516.

It can be divided in two parts, 1191 and 2653, that added together give a square (3844 = 62²).

The spelling of 11912653 in words is "eleven million, nine hundred twelve thousand, six hundred fifty-three".