340235197 has 2 divisors, whose sum is σ = 340235198. Its totient is φ = 340235196.

The previous prime is 340235191. The next prime is 340235213. The reversal of 340235197 is 791532043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295358596 + 44876601 = 17186^2 + 6699^2 .

It is an emirp because it is prime and its reverse (791532043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340235197 - 2¹¹ = 340233149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340235191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170117598 + 170117599.

It is an arithmetic number, because the mean of its divisors is an integer number (170117599).

Almost surely, 2^340235197 is an apocalyptic number.

It is an amenable number.

340235197 is a deficient number, since it is larger than the sum of its proper divisors (1).

340235197 is an equidigital number, since it uses as much as digits as its factorization.

340235197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 340235197 is about 18445.4654861296. The cubic root of 340235197 is about 698.1141053403.

The spelling of 340235197 in words is "three hundred forty million, two hundred thirty-five thousand, one hundred ninety-seven".