201696031 has 2 divisors, whose sum is σ = 201696032. Its totient is φ = 201696030.

The previous prime is 201696017. The next prime is 201696049. The reversal of 201696031 is 130696102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201696031 - 2⁵ = 201695999 is a prime.

It is a super-2 number, since 2×201696031² = 81362577842305922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201696071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100848015 + 100848016.

It is an arithmetic number, because the mean of its divisors is an integer number (100848016).

Almost surely, 2^201696031 is an apocalyptic number.

201696031 is a deficient number, since it is larger than the sum of its proper divisors (1).

201696031 is an equidigital number, since it uses as much as digits as its factorization.

201696031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 201696031 is about 14201.9727854971. The cubic root of 201696031 is about 586.4519716656.

The spelling of 201696031 in words is "two hundred one million, six hundred ninety-six thousand, thirty-one".