261152 has 12 divisors (see below), whose sum is σ = 514206. Its totient is φ = 130560.

The previous prime is 261127. The next prime is 261167. The reversal of 261152 is 251162.

261152 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 234256 + 26896 = 484^2 + 164^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 261152.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 261152.

It is an unprimeable number.

261152 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4049 + ... + 4112.

2²⁶¹¹⁵² is an apocalyptic number.

It is an amenable number.

261152 is a deficient number, since it is larger than the sum of its proper divisors (253054).

261152 is an equidigital number, since it uses as much as digits as its factorization.

261152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171 (or 8163 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 261152 is about 511.0303317808. The cubic root of 261152 is about 63.9191687875.

The spelling of 261152 in words is "two hundred sixty-one thousand, one hundred fifty-two".