15974081 has 2 divisors, whose sum is σ = 15974082. Its totient is φ = 15974080.

The previous prime is 15974071. The next prime is 15974093. The reversal of 15974081 is 18047951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15054400 + 919681 = 3880^2 + 959^2 .

It is a cyclic number.

It is not a de Polignac number, because 15974081 - 2⁶ = 15974017 is a prime.

It is a super-2 number, since 2×15974081² = 510342527589122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15974011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7987040 + 7987041.

It is an arithmetic number, because the mean of its divisors is an integer number (7987041).

Almost surely, 2^15974081 is an apocalyptic number.

It is an amenable number.

15974081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15974081 is an equidigital number, since it uses as much as digits as its factorization.

15974081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 15974081 is about 3996.7588118374. The cubic root of 15974081 is about 251.8480702161.

The spelling of 15974081 in words is "fifteen million, nine hundred seventy-four thousand, eighty-one".