261017034 has 8 divisors (see below), whose sum is σ = 522034080. Its totient is φ = 87005676.

The previous prime is 261017033. The next prime is 261017047. The reversal of 261017034 is 430710162.

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

261017034 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 261016995 and 261017013.

It is not an unprimeable number, because it can be changed into a prime (261017033) by changing a digit.

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, 21751414 + ... + 21751425.

It is an arithmetic number, because the mean of its divisors is an integer number (65254260).

Almost surely, 2^261017034 is an apocalyptic number.

261017034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261017034 is a wasteful number, since it uses less digits than its factorization.

261017034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43502844.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 261017034 is about 16156.0216018672. The cubic root of 261017034 is about 639.0815553196.

Adding to 261017034 its reverse (430710162), we get a palindrome (691727196).

The spelling of 261017034 in words is "two hundred sixty-one million, seventeen thousand, thirty-four".