12199553 has 2 divisors, whose sum is σ = 12199554. Its totient is φ = 12199552.

The previous prime is 12199549. The next prime is 12199567. The reversal of 12199553 is 35599121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 693889 = 3392^2 + 833^2 .

It is an emirp because it is prime and its reverse (35599121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12199553 - 2² = 12199549 is a prime.

It is not a weakly prime, because it can be changed into another prime (12199513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6099776 + 6099777.

It is an arithmetic number, because the mean of its divisors is an integer number (6099777).

Almost surely, 2^12199553 is an apocalyptic number.

It is an amenable number.

12199553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199553 is an equidigital number, since it uses as much as digits as its factorization.

12199553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 35.

The square root of 12199553 is about 3492.7858508646. The cubic root of 12199553 is about 230.2049402083.

It can be divided in two parts, 1219955 and 3, that multiplied together give a triangular number (3659865 = T₂₇₀₅).

The spelling of 12199553 in words is "twelve million, one hundred ninety-nine thousand, five hundred fifty-three".