340345131 has 36 divisors (see below), whose sum is σ = 546911352. Its totient is φ = 187708416.

The previous prime is 340345097. The next prime is 340345147. The reversal of 340345131 is 131543043.

It is a happy number.

It is not a de Polignac number, because 340345131 - 2¹¹ = 340343083 is a prime.

It is a super-2 number, since 2×340345131² = 231669616390814322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340345331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 122251 + ... + 125003.

It is an arithmetic number, because the mean of its divisors is an integer number (15191982).

Almost surely, 2^340345131 is an apocalyptic number.

340345131 is a deficient number, since it is larger than the sum of its proper divisors (206566221).

340345131 is a wasteful number, since it uses less digits than its factorization.

340345131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 340345131 is about 18448.4452190422. The cubic root of 340345131 is about 698.1892868738.

Adding to 340345131 its reverse (131543043), we get a palindrome (471888174).

The spelling of 340345131 in words is "three hundred forty million, three hundred forty-five thousand, one hundred thirty-one".