345491206237 has 2 divisors, whose sum is σ = 345491206238. Its totient is φ = 345491206236.

The previous prime is 345491206187. The next prime is 345491206271. The reversal of 345491206237 is 732602194543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313533923481 + 31957282756 = 559941^2 + 178766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345491206237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345491206297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172745603118 + 172745603119.

It is an arithmetic number, because the mean of its divisors is an integer number (172745603119).

Almost surely, 2^345491206237 is an apocalyptic number.

It is an amenable number.

345491206237 is a deficient number, since it is larger than the sum of its proper divisors (1).

345491206237 is an equidigital number, since it uses as much as digits as its factorization.

345491206237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 345491206237 in words is "three hundred forty-five billion, four hundred ninety-one million, two hundred six thousand, two hundred thirty-seven".