195126031 has 2 divisors, whose sum is σ = 195126032. Its totient is φ = 195126030.

The previous prime is 195126013. The next prime is 195126077. The reversal of 195126031 is 130621591.

195126031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (195126013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195126031 - 2¹¹ = 195123983 is a prime.

It is a super-2 number, since 2×195126031² = 76148335947625922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195126331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97563015 + 97563016.

It is an arithmetic number, because the mean of its divisors is an integer number (97563016).

Almost surely, 2^195126031 is an apocalyptic number.

195126031 is a deficient number, since it is larger than the sum of its proper divisors (1).

195126031 is an equidigital number, since it uses as much as digits as its factorization.

195126031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 195126031 is about 13968.7519485457. The cubic root of 195126031 is about 580.0139027583.

The spelling of 195126031 in words is "one hundred ninety-five million, one hundred twenty-six thousand, thirty-one".