340256545 has 4 divisors (see below), whose sum is σ = 408307860. Its totient is φ = 272205232.

The previous prime is 340256537. The next prime is 340256563. The reversal of 340256545 is 545652043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47983329 + 292273216 = 6927^2 + 17096^2 .

It is a cyclic number.

It is not a de Polignac number, because 340256545 - 2³ = 340256537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340256545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34025650 + ... + 34025659.

It is an arithmetic number, because the mean of its divisors is an integer number (102076965).

Almost surely, 2^340256545 is an apocalyptic number.

It is an amenable number.

340256545 is a deficient number, since it is larger than the sum of its proper divisors (68051315).

340256545 is an equidigital number, since it uses as much as digits as its factorization.

340256545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68051314.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 340256545 is about 18446.0441558617. The cubic root of 340256545 is about 698.1287060521.

The spelling of 340256545 in words is "three hundred forty million, two hundred fifty-six thousand, five hundred forty-five".