16253761 has 2 divisors, whose sum is σ = 16253762. Its totient is φ = 16253760.

The previous prime is 16253749. The next prime is 16253771. The reversal of 16253761 is 16735261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14107536 + 2146225 = 3756^2 + 1465^2 .

It is an emirp because it is prime and its reverse (16735261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16253761 - 2⁵ = 16253729 is a prime.

It is not a weakly prime, because it can be changed into another prime (16253701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8126880 + 8126881.

It is an arithmetic number, because the mean of its divisors is an integer number (8126881).

Almost surely, 2^16253761 is an apocalyptic number.

It is an amenable number.

16253761 is a deficient number, since it is larger than the sum of its proper divisors (1).

16253761 is an equidigital number, since it uses as much as digits as its factorization.

16253761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 16253761 is about 4031.5953417971. The cubic root of 16253761 is about 253.3093904349.

The spelling of 16253761 in words is "sixteen million, two hundred fifty-three thousand, seven hundred sixty-one".