3081261 has 8 divisors (see below), whose sum is σ = 4186080. Its totient is φ = 2015312.

The previous prime is 3081259. The next prime is 3081271. The reversal of 3081261 is 1621803.

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 3081261 - 2¹ = 3081259 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081271) 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, 9531 + ... + 9848.

It is an arithmetic number, because the mean of its divisors is an integer number (523260).

Almost surely, 2^3081261 is an apocalyptic number.

It is an amenable number.

3081261 is a deficient number, since it is larger than the sum of its proper divisors (1104819).

3081261 is a wasteful number, since it uses less digits than its factorization.

3081261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19435.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 3081261 is about 1755.3521014315. The cubic root of 3081261 is about 145.5155803393.

The spelling of 3081261 in words is "three million, eighty-one thousand, two hundred sixty-one".