346231261 has 4 divisors (see below), whose sum is σ = 358170300. Its totient is φ = 334292224.

The previous prime is 346231241. The next prime is 346231289. The reversal of 346231261 is 162132643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162132643 = 19 ⋅8533297.

It can be written as a sum of positive squares in 2 ways, for example, as 155625625 + 190605636 = 12475^2 + 13806^2 .

It is a cyclic number.

It is not a de Polignac number, because 346231261 - 2⁵ = 346231229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346231211) 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, 5969476 + ... + 5969533.

It is an arithmetic number, because the mean of its divisors is an integer number (89542575).

Almost surely, 2^346231261 is an apocalyptic number.

It is an amenable number.

346231261 is a deficient number, since it is larger than the sum of its proper divisors (11939039).

346231261 is a wasteful number, since it uses less digits than its factorization.

346231261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11939038.

The product of its digits is 5184, while the sum is 28.

The square root of 346231261 is about 18607.2905335516. The cubic root of 346231261 is about 702.1912700564.

The spelling of 346231261 in words is "three hundred forty-six million, two hundred thirty-one thousand, two hundred sixty-one".