120651869 has 8 divisors (see below), whose sum is σ = 130795392. Its totient is φ = 110631600.

The previous prime is 120651863. The next prime is 120651887. The reversal of 120651869 is 968156021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120651869 - 2⁸ = 120651613 is a prime.

It is a super-2 number, since 2×120651869² = 29113746986386322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120651863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28769 + ... + 32694.

It is an arithmetic number, because the mean of its divisors is an integer number (16349424).

Almost surely, 2^120651869 is an apocalyptic number.

It is an amenable number.

120651869 is a deficient number, since it is larger than the sum of its proper divisors (10143523).

120651869 is a wasteful number, since it uses less digits than its factorization.

120651869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61627.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 120651869 is about 10984.1644652654. The cubic root of 120651869 is about 494.1339398159.

The spelling of 120651869 in words is "one hundred twenty million, six hundred fifty-one thousand, eight hundred sixty-nine".