340015213 has 2 divisors, whose sum is σ = 340015214. Its totient is φ = 340015212.

The previous prime is 340015201. The next prime is 340015219. The reversal of 340015213 is 312510043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329858244 + 10156969 = 18162^2 + 3187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340015213 is a prime.

It is a super-2 number, since 2×340015213² = 231220690142870738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340015219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170007606 + 170007607.

It is an arithmetic number, because the mean of its divisors is an integer number (170007607).

Almost surely, 2^340015213 is an apocalyptic number.

It is an amenable number.

340015213 is a deficient number, since it is larger than the sum of its proper divisors (1).

340015213 is an equidigital number, since it uses as much as digits as its factorization.

340015213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 340015213 is about 18439.5014303533. The cubic root of 340015213 is about 697.9636143024.

Adding to 340015213 its reverse (312510043), we get a palindrome (652525256).

The spelling of 340015213 in words is "three hundred forty million, fifteen thousand, two hundred thirteen".