261123244 has 6 divisors (see below), whose sum is σ = 456965684. Its totient is φ = 130561620.

The previous prime is 261123227. The next prime is 261123257. The reversal of 261123244 is 442321162.

It is a happy number.

261123244 is digitally balanced in base 2, 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 as a sum of consecutive naturals, namely, 32640402 + ... + 32640409.

Almost surely, 2^261123244 is an apocalyptic number.

It is an amenable number.

261123244 is a deficient number, since it is larger than the sum of its proper divisors (195842440).

261123244 is a wasteful number, since it uses less digits than its factorization.

261123244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65280815 (or 65280813 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 261123244 is about 16159.3082772747. The cubic root of 261123244 is about 639.1682260967.

The spelling of 261123244 in words is "two hundred sixty-one million, one hundred twenty-three thousand, two hundred forty-four".