20195267 has 2 divisors, whose sum is σ = 20195268. Its totient is φ = 20195266.

The previous prime is 20195249. The next prime is 20195297. The reversal of 20195267 is 76259102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20195267 - 2⁸ = 20195011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20195297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10097633 + 10097634.

It is an arithmetic number, because the mean of its divisors is an integer number (10097634).

Almost surely, 2^20195267 is an apocalyptic number.

20195267 is a deficient number, since it is larger than the sum of its proper divisors (1).

20195267 is an equidigital number, since it uses as much as digits as its factorization.

20195267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 20195267 is about 4493.9144406631. The cubic root of 20195267 is about 272.3222958335.

The spelling of 20195267 in words is "twenty million, one hundred ninety-five thousand, two hundred sixty-seven".