120887963 has 4 divisors (see below), whose sum is σ = 138157680. Its totient is φ = 103618248.

The previous prime is 120887957. The next prime is 120887981. The reversal of 120887963 is 369788021.

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

It is a cyclic number.

It is not a de Polignac number, because 120887963 - 2¹⁰ = 120886939 is a prime.

It is a super-2 number, since 2×120887963² = 29227799196578738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120887903) 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, 8634848 + ... + 8634861.

It is an arithmetic number, because the mean of its divisors is an integer number (34539420).

Almost surely, 2^120887963 is an apocalyptic number.

120887963 is a deficient number, since it is larger than the sum of its proper divisors (17269717).

120887963 is an equidigital number, since it uses as much as digits as its factorization.

120887963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17269716.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 120887963 is about 10994.9062297047. The cubic root of 120887963 is about 494.4560402149.

The spelling of 120887963 in words is "one hundred twenty million, eight hundred eighty-seven thousand, nine hundred sixty-three".