8138201 has 2 divisors, whose sum is σ = 8138202. Its totient is φ = 8138200.

The previous prime is 8138197. The next prime is 8138209. The reversal of 8138201 is 1028318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8128201 + 10000 = 2851^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 8138201 - 2² = 8138197 is a prime.

It is equal to p₅₄₈₄₂₀ and since 8138201 and 548420 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8138209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069100 + 4069101.

It is an arithmetic number, because the mean of its divisors is an integer number (4069101).

Almost surely, 2^8138201 is an apocalyptic number.

It is an amenable number.

8138201 is a deficient number, since it is larger than the sum of its proper divisors (1).

8138201 is an equidigital number, since it uses as much as digits as its factorization.

8138201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 8138201 is about 2852.7532315291. The cubic root of 8138201 is about 201.1451061467.

The spelling of 8138201 in words is "eight million, one hundred thirty-eight thousand, two hundred one".