340661131 has 2 divisors, whose sum is σ = 340661132. Its totient is φ = 340661130.

The previous prime is 340661071. The next prime is 340661137. The reversal of 340661131 is 131166043.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340661131 - 2¹⁵ = 340628363 is a prime.

It is a super-2 number, since 2×340661131² = 232100012348398322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340661096 and 340661105.

It is not a weakly prime, because it can be changed into another prime (340661137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170330565 + 170330566.

It is an arithmetic number, because the mean of its divisors is an integer number (170330566).

Almost surely, 2^340661131 is an apocalyptic number.

340661131 is a deficient number, since it is larger than the sum of its proper divisors (1).

340661131 is an equidigital number, since it uses as much as digits as its factorization.

340661131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 340661131 is about 18457.0076393764. The cubic root of 340661131 is about 698.4053024687.

The spelling of 340661131 in words is "three hundred forty million, six hundred sixty-one thousand, one hundred thirty-one".