261140092 has 6 divisors (see below), whose sum is σ = 456995168. Its totient is φ = 130570044.

The previous prime is 261140069. The next prime is 261140093. The reversal of 261140092 is 290041162.

261140092 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261140093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32642508 + ... + 32642515.

Almost surely, 2^261140092 is an apocalyptic number.

It is an amenable number.

261140092 is a deficient number, since it is larger than the sum of its proper divisors (195855076).

261140092 is a wasteful number, since it uses less digits than its factorization.

261140092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65285027 (or 65285025 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 261140092 is about 16159.8295783093. The cubic root of 261140092 is about 639.1819724469.

The spelling of 261140092 in words is "two hundred sixty-one million, one hundred forty thousand, ninety-two".