16190761 has 2 divisors, whose sum is σ = 16190762. Its totient is φ = 16190760.

The previous prime is 16190723. The next prime is 16190767. The reversal of 16190761 is 16709161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 4596736 = 3405^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 16190761 - 2⁷ = 16190633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16190767) 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, 8095380 + 8095381.

It is an arithmetic number, because the mean of its divisors is an integer number (8095381).

Almost surely, 2^16190761 is an apocalyptic number.

It is an amenable number.

16190761 is a deficient number, since it is larger than the sum of its proper divisors (1).

16190761 is an equidigital number, since it uses as much as digits as its factorization.

16190761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 16190761 is about 4023.7744718113. The cubic root of 16190761 is about 252.9816887496.

Subtracting 16190761 from its reverse (16709161), we obtain a square (518400 = 720²).

The spelling of 16190761 in words is "sixteen million, one hundred ninety thousand, seven hundred sixty-one".