216460001 has 2 divisors, whose sum is σ = 216460002. Its totient is φ = 216460000.

The previous prime is 216459941. The next prime is 216460019. The reversal of 216460001 is 100064612.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185368225 + 31091776 = 13615^2 + 5576^2 .

It is a cyclic number.

It is not a de Polignac number, because 216460001 - 2⁶ = 216459937 is a prime.

It is not a weakly prime, because it can be changed into another prime (216460021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108230000 + 108230001.

It is an arithmetic number, because the mean of its divisors is an integer number (108230001).

Almost surely, 2^216460001 is an apocalyptic number.

It is an amenable number.

216460001 is a deficient number, since it is larger than the sum of its proper divisors (1).

216460001 is an equidigital number, since it uses as much as digits as its factorization.

216460001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 216460001 is about 14712.5796854257. The cubic root of 216460001 is about 600.4256248529.

The spelling of 216460001 in words is "two hundred sixteen million, four hundred sixty thousand, one".