261101422 has 8 divisors (see below), whose sum is σ = 391721616. Its totient is φ = 130527552.

The previous prime is 261101417. The next prime is 261101447. The reversal of 261101422 is 224101162.

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 261101422.

It is a congruent number.

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, 12663 + ... + 26125.

It is an arithmetic number, because the mean of its divisors is an integer number (48965202).

Almost surely, 2^261101422 is an apocalyptic number.

261101422 is a deficient number, since it is larger than the sum of its proper divisors (130620194).

261101422 is a wasteful number, since it uses less digits than its factorization.

261101422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23162.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 261101422 is about 16158.6330486214. The cubic root of 261101422 is about 639.1504205612.

Adding to 261101422 its reverse (224101162), we get a palindrome (485202584).

The spelling of 261101422 in words is "two hundred sixty-one million, one hundred one thousand, four hundred twenty-two".