340356157 has 2 divisors, whose sum is σ = 340356158. Its totient is φ = 340356156.

The previous prime is 340356131. The next prime is 340356169. The reversal of 340356157 is 751653043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337603876 + 2752281 = 18374^2 + 1659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340356157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340356197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170178078 + 170178079.

It is an arithmetic number, because the mean of its divisors is an integer number (170178079).

Almost surely, 2^340356157 is an apocalyptic number.

It is an amenable number.

340356157 is a deficient number, since it is larger than the sum of its proper divisors (1).

340356157 is an equidigital number, since it uses as much as digits as its factorization.

340356157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 340356157 is about 18448.7440493926. The cubic root of 340356157 is about 698.1968264283.

The spelling of 340356157 in words is "three hundred forty million, three hundred fifty-six thousand, one hundred fifty-seven".