16095721 has 2 divisors, whose sum is σ = 16095722. Its totient is φ = 16095720.

The previous prime is 16095691. The next prime is 16095733. The reversal of 16095721 is 12759061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16040025 + 55696 = 4005^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 16095721 - 2⁷ = 16095593 is a prime.

It is equal to p_1036858 and since 16095721 and 1036858 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (16095221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8047860 + 8047861.

It is an arithmetic number, because the mean of its divisors is an integer number (8047861).

Almost surely, 2^16095721 is an apocalyptic number.

It is an amenable number.

16095721 is a deficient number, since it is larger than the sum of its proper divisors (1).

16095721 is an equidigital number, since it uses as much as digits as its factorization.

16095721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 16095721 is about 4011.9472828042. The cubic root of 16095721 is about 252.4857149713.

The spelling of 16095721 in words is "sixteen million, ninety-five thousand, seven hundred twenty-one".