2356081 has 16 divisors (see below), whose sum is σ = 3072384. Its totient is φ = 1753344.

The previous prime is 2356073. The next prime is 2356091. The reversal of 2356081 is 1806532.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2356081 - 2³ = 2356073 is a prime.

It is a super-2 number, since 2×2356081² = 11102235357122, which contains 22 as substring.

It is an Ulam number.

2356081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2356001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786 + ... + 2308.

It is an arithmetic number, because the mean of its divisors is an integer number (192024).

2^2356081 is an apocalyptic number.

It is an amenable number.

2356081 is a deficient number, since it is larger than the sum of its proper divisors (716303).

2356081 is a wasteful number, since it uses less digits than its factorization.

2356081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2356081 is about 1534.9530937459. The cubic root of 2356081 is about 133.0648674472.

The spelling of 2356081 in words is "two million, three hundred fifty-six thousand, eighty-one".