340531315 has 4 divisors (see below), whose sum is σ = 408637584. Its totient is φ = 272425048.

The previous prime is 340531291. The next prime is 340531327. The reversal of 340531315 is 513135043.

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

It is a cyclic number.

It is not a de Polignac number, because 340531315 - 2¹⁵ = 340498547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340531315.

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, 34053127 + ... + 34053136.

It is an arithmetic number, because the mean of its divisors is an integer number (102159396).

Almost surely, 2^340531315 is an apocalyptic number.

340531315 is a deficient number, since it is larger than the sum of its proper divisors (68106269).

340531315 is an equidigital number, since it uses as much as digits as its factorization.

340531315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68106268.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 340531315 is about 18453.4905912134. The cubic root of 340531315 is about 698.3165772484.

Adding to 340531315 its reverse (513135043), we get a palindrome (853666358).

The spelling of 340531315 in words is "three hundred forty million, five hundred thirty-one thousand, three hundred fifteen".