120881087 has 4 divisors (see below), whose sum is σ = 121681776. Its totient is φ = 120080400.

The previous prime is 120881083. The next prime is 120881093. The reversal of 120881087 is 780188021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780188021 = 17 ⋅45893413.

It is a cyclic number.

It is not a de Polignac number, because 120881087 - 2² = 120881083 is a prime.

It is a super-2 number, since 2×120881087² = 29224474388603138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120881083) 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, 400118 + ... + 400419.

It is an arithmetic number, because the mean of its divisors is an integer number (30420444).

Almost surely, 2^120881087 is an apocalyptic number.

120881087 is a deficient number, since it is larger than the sum of its proper divisors (800689).

120881087 is an equidigital number, since it uses as much as digits as its factorization.

120881087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800688.

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 120881087 is about 10994.5935350062. The cubic root of 120881087 is about 494.4466652970.

The spelling of 120881087 in words is "one hundred twenty million, eight hundred eighty-one thousand, eighty-seven".