869540201 has 2 divisors, whose sum is σ = 869540202. Its totient is φ = 869540200.

The previous prime is 869540167. The next prime is 869540237. The reversal of 869540201 is 102045968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710275801 + 159264400 = 26651^2 + 12620^2 .

It is a cyclic number.

It is not a de Polignac number, because 869540201 - 2¹⁴ = 869523817 is a prime.

It is a super-2 number, since 2×869540201² = 1512200322310240802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (869540401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434770100 + 434770101.

It is an arithmetic number, because the mean of its divisors is an integer number (434770101).

Almost surely, 2^869540201 is an apocalyptic number.

It is an amenable number.

869540201 is a deficient number, since it is larger than the sum of its proper divisors (1).

869540201 is an equidigital number, since it uses as much as digits as its factorization.

869540201 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 35.

The square root of 869540201 is about 29487.9670543766. The cubic root of 869540201 is about 954.4720640424.

The spelling of 869540201 in words is "eight hundred sixty-nine million, five hundred forty thousand, two hundred one".