4156881 has 8 divisors (see below), whose sum is σ = 5625504. Its totient is φ = 2729760.

The previous prime is 4156871. The next prime is 4156903. The reversal of 4156881 is 1886514.

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

It is not a de Polignac number, because 4156881 - 2¹⁰ = 4155857 is a prime.

It is a super-2 number, since 2×4156881² = 34559319296322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4156871) 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, 10140 + ... + 10541.

It is an arithmetic number, because the mean of its divisors is an integer number (703188).

Almost surely, 2^4156881 is an apocalyptic number.

It is an amenable number.

4156881 is a deficient number, since it is larger than the sum of its proper divisors (1468623).

4156881 is a wasteful number, since it uses less digits than its factorization.

4156881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20751.

The product of its digits is 7680, while the sum is 33.

The square root of 4156881 is about 2038.8430542835. The cubic root of 4156881 is about 160.7888259234.

The spelling of 4156881 in words is "four million, one hundred fifty-six thousand, eight hundred eighty-one".