261460533 has 16 divisors (see below), whose sum is σ = 353772800. Its totient is φ = 171737280.

The previous prime is 261460517. The next prime is 261460543. The reversal of 261460533 is 335064162.

It is not a de Polignac number, because 261460533 - 2⁴ = 261460517 is a prime.

It is a super-2 number, since 2×261460533² = 136723220633288178, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 261460533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261460513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155823 + ... + 157491.

It is an arithmetic number, because the mean of its divisors is an integer number (22110800).

Almost surely, 2^261460533 is an apocalyptic number.

It is an amenable number.

261460533 is a deficient number, since it is larger than the sum of its proper divisors (92312267).

261460533 is a wasteful number, since it uses less digits than its factorization.

261460533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 261460533 is about 16169.7412780786. The cubic root of 261460533 is about 639.4433090456.

The spelling of 261460533 in words is "two hundred sixty-one million, four hundred sixty thousand, five hundred thirty-three".