261214441 has 8 divisors (see below), whose sum is σ = 265456224. Its totient is φ = 256982880.

The previous prime is 261214423. The next prime is 261214477. The reversal of 261214441 is 144412162.

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 261214441 - 2⁵ = 261214409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261214141) 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, 61806 + ... + 65896.

It is an arithmetic number, because the mean of its divisors is an integer number (33182028).

Almost surely, 2^261214441 is an apocalyptic number.

It is an amenable number.

261214441 is a deficient number, since it is larger than the sum of its proper divisors (4241783).

261214441 is an equidigital number, since it uses as much as digits as its factorization.

261214441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

The product of its digits is 1536, while the sum is 25.

The square root of 261214441 is about 16162.1298410822. The cubic root of 261214441 is about 639.2426270312.

The spelling of 261214441 in words is "two hundred sixty-one million, two hundred fourteen thousand, four hundred forty-one".