261614171 has 8 divisors (see below), whose sum is σ = 321986784. Its totient is φ = 206991360.

The previous prime is 261614147. The next prime is 261614179. The reversal of 261614171 is 171416162.

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 261614171 - 2²² = 257419867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (261614179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1437350 + ... + 1437531.

It is an arithmetic number, because the mean of its divisors is an integer number (40248348).

Almost surely, 2^261614171 is an apocalyptic number.

261614171 is a deficient number, since it is larger than the sum of its proper divisors (60372613).

261614171 is a wasteful number, since it uses less digits than its factorization.

261614171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874901.

The product of its digits is 2016, while the sum is 29.

The square root of 261614171 is about 16174.4913675825. The cubic root of 261614171 is about 639.5685332408.

The spelling of 261614171 in words is "two hundred sixty-one million, six hundred fourteen thousand, one hundred seventy-one".