261967483 has 4 divisors (see below), whose sum is σ = 262122480. Its totient is φ = 261812488.

The previous prime is 261967477. The next prime is 261967507. The reversal of 261967483 is 384769162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261967483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261967423) 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 3 ways as a sum of consecutive naturals, for example, 74935 + ... + 78352.

It is an arithmetic number, because the mean of its divisors is an integer number (65530620).

Almost surely, 2^261967483 is an apocalyptic number.

261967483 is a deficient number, since it is larger than the sum of its proper divisors (154997).

261967483 is a wasteful number, since it uses less digits than its factorization.

261967483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154996.

The product of its digits is 435456, while the sum is 46.

The square root of 261967483 is about 16185.4095715864. The cubic root of 261967483 is about 639.8563178429.

It can be divided in two parts, 261967 and 483, that added together give a triangular number (262450 = T₇₂₄).

The spelling of 261967483 in words is "two hundred sixty-one million, nine hundred sixty-seven thousand, four hundred eighty-three".