340356161 has 4 divisors (see below), whose sum is σ = 351335424. Its totient is φ = 329376900.

The previous prime is 340356157. The next prime is 340356169. The reversal of 340356161 is 161653043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 340356161 - 2² = 340356157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340356169) 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 3 ways as a sum of consecutive naturals, for example, 5489585 + ... + 5489646.

It is an arithmetic number, because the mean of its divisors is an integer number (87833856).

Almost surely, 2^340356161 is an apocalyptic number.

340356161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

340356161 is a deficient number, since it is larger than the sum of its proper divisors (10979263).

340356161 is a wasteful number, since it uses less digits than its factorization.

340356161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10979262.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 340356161 is about 18448.7441578011. The cubic root of 340356161 is about 698.1968291634.

The spelling of 340356161 in words is "three hundred forty million, three hundred fifty-six thousand, one hundred sixty-one".