261016934 has 8 divisors (see below), whose sum is σ = 392222520. Its totient is φ = 130276096.

The previous prime is 261016909. The next prime is 261016961. The reversal of 261016934 is 439610162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 261016934.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114779 + ... + 117030.

It is an arithmetic number, because the mean of its divisors is an integer number (49027815).

Almost surely, 2^261016934 is an apocalyptic number.

261016934 is a deficient number, since it is larger than the sum of its proper divisors (131205586).

261016934 is a wasteful number, since it uses less digits than its factorization.

261016934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232374.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 261016934 is about 16156.0185070456. The cubic root of 261016934 is about 639.0814737053.

The spelling of 261016934 in words is "two hundred sixty-one million, sixteen thousand, nine hundred thirty-four".