261842341 has 8 divisors (see below), whose sum is σ = 265870080. Its totient is φ = 257835552.

The previous prime is 261842323. The next prime is 261842369. The reversal of 261842341 is 143248162.

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 261842341 - 2¹⁹ = 261318053 is a prime.

It is a super-2 number, since 2×261842341² = 137122823080720562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261842641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20940 + ... + 31018.

It is an arithmetic number, because the mean of its divisors is an integer number (33233760).

Almost surely, 2^261842341 is an apocalyptic number.

It is an amenable number.

261842341 is a deficient number, since it is larger than the sum of its proper divisors (4027739).

261842341 is a wasteful number, since it uses less digits than its factorization.

261842341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10475.

The product of its digits is 9216, while the sum is 31.

The square root of 261842341 is about 16181.5432205955. The cubic root of 261842341 is about 639.7544150519.

The spelling of 261842341 in words is "two hundred sixty-one million, eight hundred forty-two thousand, three hundred forty-one".