120881 has 4 divisors (see below), whose sum is σ = 122100. Its totient is φ = 119664.

The previous prime is 120877. The next prime is 120889. The reversal of 120881 is 188021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33856 + 87025 = 184^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 120881 - 2² = 120877 is a prime.

It is a super-2 number, since 2×120881² = 29224432322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120881.

It is not an unprimeable number, because it can be changed into a prime (120889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446 + ... + 663.

It is an arithmetic number, because the mean of its divisors is an integer number (30525).

2¹²⁰⁸⁸¹ is an apocalyptic number.

It is an amenable number.

120881 is a deficient number, since it is larger than the sum of its proper divisors (1219).

120881 is a wasteful number, since it uses less digits than its factorization.

120881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 120881 is about 347.6794500686. The cubic root of 120881 is about 49.4446546677. Note that the first 3 decimals are identical.

It can be divided in two parts, 120 and 881, that added together give a palindrome (1001).

The spelling of 120881 in words is "one hundred twenty thousand, eight hundred eighty-one".