340342141 has 4 divisors (see below), whose sum is σ = 344166300. Its totient is φ = 336517984.

The previous prime is 340342139. The next prime is 340342147. The reversal of 340342141 is 141243043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141243043 = 139 ⋅1016137.

It can be written as a sum of positive squares in 2 ways, for example, as 30758116 + 309584025 = 5546^2 + 17595^2 .

It is a cyclic number.

It is not a de Polignac number, because 340342141 - 2¹ = 340342139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340342147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911946 + ... + 1912123.

It is an arithmetic number, because the mean of its divisors is an integer number (86041575).

Almost surely, 2^340342141 is an apocalyptic number.

It is an amenable number.

340342141 is a deficient number, since it is larger than the sum of its proper divisors (3824159).

340342141 is an equidigital number, since it uses as much as digits as its factorization.

340342141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824158.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 340342141 is about 18448.3641822249. The cubic root of 340342141 is about 698.1872422903.

Adding to 340342141 its reverse (141243043), we get a palindrome (481585184).

The spelling of 340342141 in words is "three hundred forty million, three hundred forty-two thousand, one hundred forty-one".