12193957 has 2 divisors, whose sum is σ = 12193958. Its totient is φ = 12193956.

The previous prime is 12193931. The next prime is 12193963. The reversal of 12193957 is 75939121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11826721 + 367236 = 3439^2 + 606^2 .

It is a cyclic number.

It is not a de Polignac number, because 12193957 - 2¹⁵ = 12161189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12193997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6096978 + 6096979.

It is an arithmetic number, because the mean of its divisors is an integer number (6096979).

Almost surely, 2^12193957 is an apocalyptic number.

It is an amenable number.

12193957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12193957 is an equidigital number, since it uses as much as digits as its factorization.

12193957 is an evil number, because the sum of its binary digits is even.

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

The square root of 12193957 is about 3491.9846792333. The cubic root of 12193957 is about 230.1697360805.

The spelling of 12193957 in words is "twelve million, one hundred ninety-three thousand, nine hundred fifty-seven".