208001231 has 2 divisors, whose sum is σ = 208001232. Its totient is φ = 208001230.

The previous prime is 208001221. The next prime is 208001249. The reversal of 208001231 is 132100802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208001231 - 2¹⁰ = 208000207 is a prime.

It is a super-2 number, since 2×208001231² = 86529024195030722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208001221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104000615 + 104000616.

It is an arithmetic number, because the mean of its divisors is an integer number (104000616).

Almost surely, 2^208001231 is an apocalyptic number.

208001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

208001231 is an equidigital number, since it uses as much as digits as its factorization.

208001231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 208001231 is about 14422.2477790392. The cubic root of 208001231 is about 592.5003825358.

The spelling of 208001231 in words is "two hundred eight million, one thousand, two hundred thirty-one".