1601267 has 2 divisors, whose sum is σ = 1601268. Its totient is φ = 1601266.

The previous prime is 1601261. The next prime is 1601269. The reversal of 1601267 is 7621061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1601267 - 2⁶ = 1601203 is a prime.

Together with 1601269, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1601261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800633 + 800634.

It is an arithmetic number, because the mean of its divisors is an integer number (800634).

2^1601267 is an apocalyptic number.

1601267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601267 is an equidigital number, since it uses as much as digits as its factorization.

1601267 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1601267 is about 1265.4117906832. The cubic root of 1601267 is about 116.9915741369.

The spelling of 1601267 in words is "one million, six hundred one thousand, two hundred sixty-seven".