345365131 has 2 divisors, whose sum is σ = 345365132. Its totient is φ = 345365130.

The previous prime is 345365113. The next prime is 345365159. The reversal of 345365131 is 131563543.

Together with previous prime (345365113) 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 345365131 - 2¹⁵ = 345332363 is a prime.

It is a super-2 number, since 2×345365131² = 238554147421294322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345365093 and 345365102.

It is not a weakly prime, because it can be changed into another prime (345365431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172682565 + 172682566.

It is an arithmetic number, because the mean of its divisors is an integer number (172682566).

Almost surely, 2^345365131 is an apocalyptic number.

345365131 is a deficient number, since it is larger than the sum of its proper divisors (1).

345365131 is an equidigital number, since it uses as much as digits as its factorization.

345365131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 31.

The square root of 345365131 is about 18584.0020178647. The cubic root of 345365131 is about 701.6052486631.

The spelling of 345365131 in words is "three hundred forty-five million, three hundred sixty-five thousand, one hundred thirty-one".