261240602 has 16 divisors (see below), whose sum is σ = 458764992. Its totient is φ = 109229280.

The previous prime is 261240587. The next prime is 261240653. The reversal of 261240602 is 206042162.

261240602 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226988 + ... + 228135.

It is an arithmetic number, because the mean of its divisors is an integer number (28672812).

Almost surely, 2^261240602 is an apocalyptic number.

261240602 is a deficient number, since it is larger than the sum of its proper divisors (197524390).

261240602 is a wasteful number, since it uses less digits than its factorization.

261240602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455173.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 261240602 is about 16162.9391510331. The cubic root of 261240602 is about 639.2639666734.

Adding to 261240602 its reverse (206042162), we get a palindrome (467282764).

The spelling of 261240602 in words is "two hundred sixty-one million, two hundred forty thousand, six hundred two".