16485961 has 2 divisors, whose sum is σ = 16485962. Its totient is φ = 16485960.

The previous prime is 16485929. The next prime is 16485967. The reversal of 16485961 is 16958461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15523600 + 962361 = 3940^2 + 981^2 .

It is a cyclic number.

It is not a de Polignac number, because 16485961 - 2⁵ = 16485929 is a prime.

It is not a weakly prime, because it can be changed into another prime (16485967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8242980 + 8242981.

It is an arithmetic number, because the mean of its divisors is an integer number (8242981).

Almost surely, 2^16485961 is an apocalyptic number.

It is an amenable number.

16485961 is a deficient number, since it is larger than the sum of its proper divisors (1).

16485961 is an equidigital number, since it uses as much as digits as its factorization.

16485961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 16485961 is about 4060.2907531358. The cubic root of 16485961 is about 254.5099443777.

The spelling of 16485961 in words is "sixteen million, four hundred eighty-five thousand, nine hundred sixty-one".