261325343 has 8 divisors (see below), whose sum is σ = 276860880. Its totient is φ = 245808000.

The previous prime is 261325331. The next prime is 261325357. The reversal of 261325343 is 343523162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261325343 - 2¹⁰ = 261324319 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 (261325303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34853 + ... + 41681.

It is an arithmetic number, because the mean of its divisors is an integer number (34607610).

Almost surely, 2^261325343 is an apocalyptic number.

261325343 is a deficient number, since it is larger than the sum of its proper divisors (15535537).

261325343 is a wasteful number, since it uses less digits than its factorization.

261325343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9097.

The product of its digits is 12960, while the sum is 29.

The square root of 261325343 is about 16165.5603985757. The cubic root of 261325343 is about 639.3330804980. Note that the first 3 decimals are identical.

The spelling of 261325343 in words is "two hundred sixty-one million, three hundred twenty-five thousand, three hundred forty-three".