19274201 has 2 divisors, whose sum is σ = 19274202. Its totient is φ = 19274200.

The previous prime is 19274197. The next prime is 19274221. The reversal of 19274201 is 10247291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18284176 + 990025 = 4276^2 + 995^2 .

It is an emirp because it is prime and its reverse (10247291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19274201 - 2² = 19274197 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19274221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9637100 + 9637101.

It is an arithmetic number, because the mean of its divisors is an integer number (9637101).

Almost surely, 2^19274201 is an apocalyptic number.

It is an amenable number.

19274201 is a deficient number, since it is larger than the sum of its proper divisors (1).

19274201 is an equidigital number, since it uses as much as digits as its factorization.

19274201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 19274201 is about 4390.2392873282. The cubic root of 19274201 is about 268.1176851894.

The spelling of 19274201 in words is "nineteen million, two hundred seventy-four thousand, two hundred one".