261375327 has 24 divisors (see below), whose sum is σ = 384065136. Its totient is φ = 171265536.

The previous prime is 261375299. The next prime is 261375379. The reversal of 261375327 is 723573162.

261375327 is a `hidden beast` number, since 2 + 613 + 7 + 5 + 32 + 7 = 666.

It is not a de Polignac number, because 261375327 - 2⁸ = 261375071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261375291 and 261375300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262375327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136108 + ... + 138014.

It is an arithmetic number, because the mean of its divisors is an integer number (16002714).

Almost surely, 2^261375327 is an apocalyptic number.

261375327 is a deficient number, since it is larger than the sum of its proper divisors (122689809).

261375327 is a wasteful number, since it uses less digits than its factorization.

261375327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167 (or 2164 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 261375327 is about 16167.1063273549. The cubic root of 261375327 is about 639.3738398915.

The spelling of 261375327 in words is "two hundred sixty-one million, three hundred seventy-five thousand, three hundred twenty-seven".