120669487 has 4 divisors (see below), whose sum is σ = 120828816. Its totient is φ = 120510160.

The previous prime is 120669473. The next prime is 120669491. The reversal of 120669487 is 784966021.

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 120669487 - 2⁷ = 120669359 is a prime.

It is a super-2 number, since 2×120669487² = 29122250185686338, 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 (120669457) 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, 78523 + ... + 80044.

It is an arithmetic number, because the mean of its divisors is an integer number (30207204).

Almost surely, 2^120669487 is an apocalyptic number.

120669487 is a deficient number, since it is larger than the sum of its proper divisors (159329).

120669487 is an equidigital number, since it uses as much as digits as its factorization.

120669487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159328.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 120669487 is about 10984.9664086878. The cubic root of 120669487 is about 494.1579903565.

The spelling of 120669487 in words is "one hundred twenty million, six hundred sixty-nine thousand, four hundred eighty-seven".