868195001 has 2 divisors, whose sum is σ = 868195002. Its totient is φ = 868195000.

The previous prime is 868194997. The next prime is 868195019. The reversal of 868195001 is 100591868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712943401 + 155251600 = 26701^2 + 12460^2 .

It is a cyclic number.

It is not a de Polignac number, because 868195001 - 2² = 868194997 is a prime.

It is a super-2 number, since 2×868195001² = 1507525119522780002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (868195061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434097500 + 434097501.

It is an arithmetic number, because the mean of its divisors is an integer number (434097501).

Almost surely, 2^868195001 is an apocalyptic number.

It is an amenable number.

868195001 is a deficient number, since it is larger than the sum of its proper divisors (1).

868195001 is an equidigital number, since it uses as much as digits as its factorization.

868195001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 868195001 is about 29465.1489220740. The cubic root of 868195001 is about 953.9796127858.

The spelling of 868195001 in words is "eight hundred sixty-eight million, one hundred ninety-five thousand, one".