402201169 has 2 divisors, whose sum is σ = 402201170. Its totient is φ = 402201168.

The previous prime is 402201157. The next prime is 402201197. The reversal of 402201169 is 961102204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277655569 + 124545600 = 16663^2 + 11160^2 .

It is a cyclic number.

It is not a de Polignac number, because 402201169 - 2⁹ = 402200657 is a prime.

It is a super-2 number, since 2×402201169² = 323531560689933122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402201119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201100584 + 201100585.

It is an arithmetic number, because the mean of its divisors is an integer number (201100585).

Almost surely, 2^402201169 is an apocalyptic number.

It is an amenable number.

402201169 is a deficient number, since it is larger than the sum of its proper divisors (1).

402201169 is an equidigital number, since it uses as much as digits as its factorization.

402201169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 402201169 is about 20054.9537271967. The cubic root of 402201169 is about 738.1553574808.

The spelling of 402201169 in words is "four hundred two million, two hundred one thousand, one hundred sixty-nine".