261454267 has 8 divisors (see below), whose sum is σ = 264242880. Its totient is φ = 258672960.

The previous prime is 261454241. The next prime is 261454283. The reversal of 261454267 is 762454162.

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 261454267 - 2¹⁹ = 260929979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261454667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97983 + ... + 100615.

It is an arithmetic number, because the mean of its divisors is an integer number (33030360).

Almost surely, 2^261454267 is an apocalyptic number.

261454267 is a deficient number, since it is larger than the sum of its proper divisors (2788613).

261454267 is a wasteful number, since it uses less digits than its factorization.

261454267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653.

The product of its digits is 80640, while the sum is 37.

The square root of 261454267 is about 16169.5475199524. The cubic root of 261454267 is about 639.4382008384.

The spelling of 261454267 in words is "two hundred sixty-one million, four hundred fifty-four thousand, two hundred sixty-seven".