261011042 has 8 divisors (see below), whose sum is σ = 391628496. Its totient is φ = 130468212.

The previous prime is 261011039. The next prime is 261011063. The reversal of 261011042 is 240110162.

261011042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 261011042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8888 + ... + 24515.

It is an arithmetic number, because the mean of its divisors is an integer number (48953562).

Almost surely, 2^261011042 is an apocalyptic number.

261011042 is a deficient number, since it is larger than the sum of its proper divisors (130617454).

261011042 is a wasteful number, since it uses less digits than its factorization.

261011042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37312.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 261011042 is about 16155.8361591098. The cubic root of 261011042 is about 639.0766649542.

The spelling of 261011042 in words is "two hundred sixty-one million, eleven thousand, forty-two".