15196457 has 2 divisors, whose sum is σ = 15196458. Its totient is φ = 15196456.

The previous prime is 15196421. The next prime is 15196459. The reversal of 15196457 is 75469151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13424896 + 1771561 = 3664^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 15196457 - 2¹² = 15192361 is a prime.

Together with 15196459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15196457.

It is not a weakly prime, because it can be changed into another prime (15196459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7598228 + 7598229.

It is an arithmetic number, because the mean of its divisors is an integer number (7598229).

Almost surely, 2^15196457 is an apocalyptic number.

It is an amenable number.

15196457 is a deficient number, since it is larger than the sum of its proper divisors (1).

15196457 is an equidigital number, since it uses as much as digits as its factorization.

15196457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 38.

The square root of 15196457 is about 3898.2633312797. The cubic root of 15196457 is about 247.6932178237.

The spelling of 15196457 in words is "fifteen million, one hundred ninety-six thousand, four hundred fifty-seven".