261327023 has 8 divisors (see below), whose sum is σ = 264929280. Its totient is φ = 257732280.

The previous prime is 261327019. The next prime is 261327037. The reversal of 261327023 is 320723162.

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

It is a cyclic number.

It is not a de Polignac number, because 261327023 - 2² = 261327019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261326983 and 261327001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261327223) 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, 122738 + ... + 124848.

It is an arithmetic number, because the mean of its divisors is an integer number (33116160).

Almost surely, 2^261327023 is an apocalyptic number.

261327023 is a deficient number, since it is larger than the sum of its proper divisors (3602257).

261327023 is a wasteful number, since it uses less digits than its factorization.

261327023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 261327023 is about 16165.6123608108. The cubic root of 261327023 is about 639.3344505364.

The spelling of 261327023 in words is "two hundred sixty-one million, three hundred twenty-seven thousand, twenty-three".