15979141 has 2 divisors, whose sum is σ = 15979142. Its totient is φ = 15979140.

The previous prime is 15979097. The next prime is 15979157. The reversal of 15979141 is 14197951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14212900 + 1766241 = 3770^2 + 1329^2 .

It is an emirp because it is prime and its reverse (14197951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15979141 - 2¹³ = 15970949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15979141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15979441) 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, 7989570 + 7989571.

It is an arithmetic number, because the mean of its divisors is an integer number (7989571).

Almost surely, 2^15979141 is an apocalyptic number.

It is an amenable number.

15979141 is a deficient number, since it is larger than the sum of its proper divisors (1).

15979141 is an equidigital number, since it uses as much as digits as its factorization.

15979141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 37.

The square root of 15979141 is about 3997.3917746451. The cubic root of 15979141 is about 251.8746594704.

The spelling of 15979141 in words is "fifteen million, nine hundred seventy-nine thousand, one hundred forty-one".