15970049 has 2 divisors, whose sum is σ = 15970050. Its totient is φ = 15970048.

The previous prime is 15970007. The next prime is 15970063. The reversal of 15970049 is 94007951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14010049 + 1960000 = 3743^2 + 1400^2 .

It is an emirp because it is prime and its reverse (94007951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15970049 - 2¹² = 15965953 is a prime.

It is not a weakly prime, because it can be changed into another prime (15970099) 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, 7985024 + 7985025.

It is an arithmetic number, because the mean of its divisors is an integer number (7985025).

Almost surely, 2^15970049 is an apocalyptic number.

It is an amenable number.

15970049 is a deficient number, since it is larger than the sum of its proper divisors (1).

15970049 is an equidigital number, since it uses as much as digits as its factorization.

15970049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 15970049 is about 3996.2543712832. The cubic root of 15970049 is about 251.8268788694.

The spelling of 15970049 in words is "fifteen million, nine hundred seventy thousand, forty-nine".