340031 has 2 divisors, whose sum is σ = 340032. Its totient is φ = 340030.

The previous prime is 340027. The next prime is 340037. The reversal of 340031 is 130043.

It is a weak prime.

It is an emirp because it is prime and its reverse (130043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340031 - 2² = 340027 is a prime.

It is a super-2 number, since 2×340031² = 231242161922, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 339994 and 340021.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340031.

It is not a weakly prime, because it can be changed into another prime (340037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170015 + 170016.

It is an arithmetic number, because the mean of its divisors is an integer number (170016).

2³⁴⁰⁰³¹ is an apocalyptic number.

340031 is a deficient number, since it is larger than the sum of its proper divisors (1).

340031 is an equidigital number, since it uses as much as digits as its factorization.

340031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 340031 is about 583.1217711593. The cubic root of 340031 is about 69.7974416350.

Adding to 340031 its reverse (130043), we get a palindrome (470074).

The spelling of 340031 in words is "three hundred forty thousand, thirty-one".