16118761 has 2 divisors, whose sum is σ = 16118762. Its totient is φ = 16118760.

The previous prime is 16118743. The next prime is 16118777. The reversal of 16118761 is 16781161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15848361 + 270400 = 3981^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 16118761 - 2¹¹ = 16116713 is a prime.

It is not a weakly prime, because it can be changed into another prime (16110761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8059380 + 8059381.

It is an arithmetic number, because the mean of its divisors is an integer number (8059381).

Almost surely, 2^16118761 is an apocalyptic number.

It is an amenable number.

16118761 is a deficient number, since it is larger than the sum of its proper divisors (1).

16118761 is an equidigital number, since it uses as much as digits as its factorization.

16118761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 31.

The square root of 16118761 is about 4014.8176795466. The cubic root of 16118761 is about 252.6061299436.

The spelling of 16118761 in words is "sixteen million, one hundred eighteen thousand, seven hundred sixty-one".