340121039 has 2 divisors, whose sum is σ = 340121040. Its totient is φ = 340121038.

The previous prime is 340120997. The next prime is 340121053. The reversal of 340121039 is 930121043.

It is a strong prime.

It is an emirp because it is prime and its reverse (930121043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340121039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340121059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170060519 + 170060520.

It is an arithmetic number, because the mean of its divisors is an integer number (170060520).

Almost surely, 2^340121039 is an apocalyptic number.

340121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

340121039 is an equidigital number, since it uses as much as digits as its factorization.

340121039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 340121039 is about 18442.3707532410. The cubic root of 340121039 is about 698.0360179606.

The spelling of 340121039 in words is "three hundred forty million, one hundred twenty-one thousand, thirty-nine".