1667000201 has 2 divisors, whose sum is σ = 1667000202. Its totient is φ = 1667000200.

The previous prime is 1667000143. The next prime is 1667000227. The reversal of 1667000201 is 1020007661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1356006976 + 310993225 = 36824^2 + 17635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1667000201 - 2²² = 1662805897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1667000281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833500100 + 833500101.

It is an arithmetic number, because the mean of its divisors is an integer number (833500101).

Almost surely, 2^1667000201 is an apocalyptic number.

It is an amenable number.

1667000201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667000201 is an equidigital number, since it uses as much as digits as its factorization.

1667000201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1667000201 is about 40828.9137866782. The cubic root of 1667000201 is about 1185.7101859572.

Adding to 1667000201 its reverse (1020007661), we get a palindrome (2687007862).

The spelling of 1667000201 in words is "one billion, six hundred sixty-seven million, two hundred one", and thus it is an aban number.