120452987 has 4 divisors (see below), whose sum is σ = 120658776. Its totient is φ = 120247200.

The previous prime is 120452977. The next prime is 120453013. The reversal of 120452987 is 789254021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789254021 = 12473 ⋅63277.

It is a cyclic number.

It is not a de Polignac number, because 120452987 - 2⁶ = 120452923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120452987.

It is not an unprimeable number, because it can be changed into a prime (120452947) 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, 102014 + ... + 103187.

It is an arithmetic number, because the mean of its divisors is an integer number (30164694).

Almost surely, 2^120452987 is an apocalyptic number.

120452987 is a deficient number, since it is larger than the sum of its proper divisors (205789).

120452987 is an equidigital number, since it uses as much as digits as its factorization.

120452987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205788.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 120452987 is about 10975.1076076729. The cubic root of 120452987 is about 493.8622811037.

The spelling of 120452987 in words is "one hundred twenty million, four hundred fifty-two thousand, nine hundred eighty-seven".