261064423 has 8 divisors (see below), whose sum is σ = 269942400. Its totient is φ = 252215040.

The previous prime is 261064411. The next prime is 261064429. The reversal of 261064423 is 324460162.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261064423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261064391 and 261064400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261064429) 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, 12303 + ... + 25951.

It is an arithmetic number, because the mean of its divisors is an integer number (33742800).

Almost surely, 2^261064423 is an apocalyptic number.

261064423 is a deficient number, since it is larger than the sum of its proper divisors (8877977).

261064423 is a wasteful number, since it uses less digits than its factorization.

261064423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14297.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 261064423 is about 16157.4881401782. The cubic root of 261064423 is about 639.1202291726.

The spelling of 261064423 in words is "two hundred sixty-one million, sixty-four thousand, four hundred twenty-three".