11974553 has 4 divisors (see below), whose sum is σ = 12098100. Its totient is φ = 11851008.

The previous prime is 11974537. The next prime is 11974561. The reversal of 11974553 is 35547911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35547911 = 7 ⋅5078273.

It can be written as a sum of positive squares in 2 ways, for example, as 6390784 + 5583769 = 2528^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 11974553 - 2⁴ = 11974537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11974453) 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, 61628 + ... + 61821.

It is an arithmetic number, because the mean of its divisors is an integer number (3024525).

Almost surely, 2^11974553 is an apocalyptic number.

It is an amenable number.

11974553 is a deficient number, since it is larger than the sum of its proper divisors (123547).

11974553 is an equidigital number, since it uses as much as digits as its factorization.

11974553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123546.

The product of its digits is 18900, while the sum is 35.

The square root of 11974553 is about 3460.4267077920. The cubic root of 11974553 is about 228.7809031875.

The spelling of 11974553 in words is "eleven million, nine hundred seventy-four thousand, five hundred fifty-three".