261103006 has 24 divisors (see below), whose sum is σ = 412486200. Its totient is φ = 123865920.

The previous prime is 261102971. The next prime is 261103013. The reversal of 261103006 is 600301162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123345 + ... + 125443.

It is an arithmetic number, because the mean of its divisors is an integer number (17186925).

Almost surely, 2^261103006 is an apocalyptic number.

261103006 is a deficient number, since it is larger than the sum of its proper divisors (151383194).

261103006 is a wasteful number, since it uses less digits than its factorization.

261103006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 261103006 is about 16158.6820625941. The cubic root of 261103006 is about 639.1517130503.

Adding to 261103006 its reverse (600301162), we get a palindrome (861404168).

The spelling of 261103006 in words is "two hundred sixty-one million, one hundred three thousand, six".