340065961 has 4 divisors (see below), whose sum is σ = 340215424. Its totient is φ = 339916500.

The previous prime is 340065959. The next prime is 340065983. The reversal of 340065961 is 169560043.

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 340065961 - 2¹ = 340065959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340065991) 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, 71265 + ... + 75886.

It is an arithmetic number, because the mean of its divisors is an integer number (85053856).

Almost surely, 2^340065961 is an apocalyptic number.

It is an amenable number.

340065961 is a deficient number, since it is larger than the sum of its proper divisors (149463).

340065961 is a wasteful number, since it uses less digits than its factorization.

340065961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149462.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 340065961 is about 18440.8774465859. The cubic root of 340065961 is about 697.9983367639.

The spelling of 340065961 in words is "three hundred forty million, sixty-five thousand, nine hundred sixty-one".