16940201 has 2 divisors, whose sum is σ = 16940202. Its totient is φ = 16940200.

The previous prime is 16940197. The next prime is 16940219. The reversal of 16940201 is 10204961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15594601 + 1345600 = 3949^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 16940201 - 2² = 16940197 is a prime.

It is not a weakly prime, because it can be changed into another prime (16940221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8470100 + 8470101.

It is an arithmetic number, because the mean of its divisors is an integer number (8470101).

Almost surely, 2^16940201 is an apocalyptic number.

It is an amenable number.

16940201 is a deficient number, since it is larger than the sum of its proper divisors (1).

16940201 is an equidigital number, since it uses as much as digits as its factorization.

16940201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 16940201 is about 4115.8475433378. The cubic root of 16940201 is about 256.8263145380.

The spelling of 16940201 in words is "sixteen million, nine hundred forty thousand, two hundred one".