20167601 has 2 divisors, whose sum is σ = 20167602. Its totient is φ = 20167600.

The previous prime is 20167571. The next prime is 20167643. The reversal of 20167601 is 10676102.

20167601 = 3175² + 3176².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 10080625 = 3176^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 20167601 - 2²² = 15973297 is a prime.

It is not a weakly prime, because it can be changed into another prime (20167691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10083800 + 10083801.

It is an arithmetic number, because the mean of its divisors is an integer number (10083801).

Almost surely, 2^20167601 is an apocalyptic number.

20167601 is the 3176-th centered square number.

It is an amenable number.

20167601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20167601 is an equidigital number, since it uses as much as digits as its factorization.

20167601 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 20167601 is about 4490.8352229847. The cubic root of 20167601 is about 272.1978853033.

The spelling of 20167601 in words is "twenty million, one hundred sixty-seven thousand, six hundred one".