261363233 has 8 divisors (see below), whose sum is σ = 268029216. Its totient is φ = 254711200.

The previous prime is 261363211. The next prime is 261363239. The reversal of 261363233 is 332363162.

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 261363233 - 2⁶ = 261363169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 261363196 and 261363205.

It is not an unprimeable number, because it can be changed into a prime (261363239) 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, 41810 + ... + 47652.

It is an arithmetic number, because the mean of its divisors is an integer number (33503652).

Almost surely, 2^261363233 is an apocalyptic number.

It is an amenable number.

261363233 is a deficient number, since it is larger than the sum of its proper divisors (6665983).

261363233 is a wasteful number, since it uses less digits than its factorization.

261363233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975.

The product of its digits is 11664, while the sum is 29.

The square root of 261363233 is about 16166.7322919630. The cubic root of 261363233 is about 639.3639783301.

The spelling of 261363233 in words is "two hundred sixty-one million, three hundred sixty-three thousand, two hundred thirty-three".