346545131 has 2 divisors, whose sum is σ = 346545132. Its totient is φ = 346545130.

The previous prime is 346545109. The next prime is 346545137. The reversal of 346545131 is 131545643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346545131 - 2¹⁴ = 346528747 is a prime.

It is a super-2 number, since 2×346545131² = 240187055639614322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (346545137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173272565 + 173272566.

It is an arithmetic number, because the mean of its divisors is an integer number (173272566).

Almost surely, 2^346545131 is an apocalyptic number.

346545131 is a deficient number, since it is larger than the sum of its proper divisors (1).

346545131 is an equidigital number, since it uses as much as digits as its factorization.

346545131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 346545131 is about 18615.7226827217. The cubic root of 346545131 is about 702.4033924471.

The spelling of 346545131 in words is "three hundred forty-six million, five hundred forty-five thousand, one hundred thirty-one".