15349897 has 2 divisors, whose sum is σ = 15349898. Its totient is φ = 15349896.

The previous prime is 15349877. The next prime is 15349907. The reversal of 15349897 is 79894351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10169721 + 5180176 = 3189^2 + 2276^2 .

It is a cyclic number.

It is not a de Polignac number, because 15349897 - 2¹⁹ = 14825609 is a prime.

It is not a weakly prime, because it can be changed into another prime (15349837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7674948 + 7674949.

It is an arithmetic number, because the mean of its divisors is an integer number (7674949).

Almost surely, 2^15349897 is an apocalyptic number.

It is an amenable number.

15349897 is a deficient number, since it is larger than the sum of its proper divisors (1).

15349897 is an equidigital number, since it uses as much as digits as its factorization.

15349897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 15349897 is about 3917.8944600385. The cubic root of 15349897 is about 248.5240878803.

The spelling of 15349897 in words is "fifteen million, three hundred forty-nine thousand, eight hundred ninety-seven".