395494031 has 2 divisors, whose sum is σ = 395494032. Its totient is φ = 395494030.

The previous prime is 395494027. The next prime is 395494061. The reversal of 395494031 is 130494593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 395494031 - 2² = 395494027 is a prime.

It is a super-2 number, since 2×395494031² = 312831057113257922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395494061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197747015 + 197747016.

It is an arithmetic number, because the mean of its divisors is an integer number (197747016).

Almost surely, 2^395494031 is an apocalyptic number.

395494031 is a deficient number, since it is larger than the sum of its proper divisors (1).

395494031 is an equidigital number, since it uses as much as digits as its factorization.

395494031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 395494031 is about 19887.0317292451. The cubic root of 395494031 is about 734.0291567537.

The spelling of 395494031 in words is "three hundred ninety-five million, four hundred ninety-four thousand, thirty-one".