261100036 has 12 divisors (see below), whose sum is σ = 457038400. Its totient is φ = 130517640.

The previous prime is 261100031. The next prime is 261100039. The reversal of 261100036 is 630001162.

It is a junction number, because it is equal to n+sod(n) for n = 261099986 and 261100022.

It is not an unprimeable number, because it can be changed into a prime (261100031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26065 + ... + 34663.

Almost surely, 2^261100036 is an apocalyptic number.

It is an amenable number.

261100036 is a deficient number, since it is larger than the sum of its proper divisors (195938364).

261100036 is a wasteful number, since it uses less digits than its factorization.

261100036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194 (or 16192 counting only the distinct ones).

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

The square root of 261100036 is about 16158.5901612734. The cubic root of 261100036 is about 639.1492896289.

Adding to 261100036 its reverse (630001162), we get a palindrome (891101198).

The spelling of 261100036 in words is "two hundred sixty-one million, one hundred thousand, thirty-six".