340665123 has 8 divisors (see below), whose sum is σ = 454507200. Its totient is φ = 226966568.

The previous prime is 340665119. The next prime is 340665133. The reversal of 340665123 is 321566043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340665123 - 2² = 340665119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340665113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30213 + ... + 39926.

It is an arithmetic number, because the mean of its divisors is an integer number (56813400).

Almost surely, 2^340665123 is an apocalyptic number.

340665123 is a deficient number, since it is larger than the sum of its proper divisors (113842077).

340665123 is a wasteful number, since it uses less digits than its factorization.

340665123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71761.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 340665123 is about 18457.1157822667. The cubic root of 340665123 is about 698.4080305199.

The spelling of 340665123 in words is "three hundred forty million, six hundred sixty-five thousand, one hundred twenty-three".