261367027 has 8 divisors (see below), whose sum is σ = 277388496. Its totient is φ = 245417472.

The previous prime is 261366971. The next prime is 261367049. The reversal of 261367027 is 720763162.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 261367027 - 2¹⁹ = 260842739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261366983 and 261367001.

It is not an unprimeable number, because it can be changed into a prime (261307027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10393 + ... + 25114.

It is an arithmetic number, because the mean of its divisors is an integer number (34673562).

Almost surely, 2^261367027 is an apocalyptic number.

261367027 is a deficient number, since it is larger than the sum of its proper divisors (16021469).

261367027 is a wasteful number, since it uses less digits than its factorization.

261367027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35957.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 261367027 is about 16166.8496312671. The cubic root of 261367027 is about 639.3670720262.

The spelling of 261367027 in words is "two hundred sixty-one million, three hundred sixty-seven thousand, twenty-seven".