346131869 has 2 divisors, whose sum is σ = 346131870. Its totient is φ = 346131868.

The previous prime is 346131859. The next prime is 346131871. The reversal of 346131869 is 968131643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193905625 + 152226244 = 13925^2 + 12338^2 .

It is a cyclic number.

It is not a de Polignac number, because 346131869 - 2⁸ = 346131613 is a prime.

It is a super-2 number, since 2×346131869² = 239614541474866322, which contains 22 as substring.

Together with 346131871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346131859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173065934 + 173065935.

It is an arithmetic number, because the mean of its divisors is an integer number (173065935).

Almost surely, 2^346131869 is an apocalyptic number.

It is an amenable number.

346131869 is a deficient number, since it is larger than the sum of its proper divisors (1).

346131869 is an equidigital number, since it uses as much as digits as its factorization.

346131869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 346131869 is about 18604.6195607435. The cubic root of 346131869 is about 702.1240713542.

The spelling of 346131869 in words is "three hundred forty-six million, one hundred thirty-one thousand, eight hundred sixty-nine".