120329865 has 24 divisors (see below), whose sum is σ = 208889928. Its totient is φ = 64078080.

The previous prime is 120329849. The next prime is 120329873. The reversal of 120329865 is 568923021.

It can be written as a sum of positive squares in 4 ways, for example, as 18481401 + 101848464 = 4299^2 + 10092^2 .

It is not a de Polignac number, because 120329865 - 2⁴ = 120329849 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35317 + ... + 38573.

It is an arithmetic number, because the mean of its divisors is an integer number (8703747).

Almost surely, 2^120329865 is an apocalyptic number.

120329865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120329865 is a deficient number, since it is larger than the sum of its proper divisors (88560063).

120329865 is a wasteful number, since it uses less digits than its factorization.

120329865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089 (or 4086 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 120329865 is about 10969.4970258440. The cubic root of 120329865 is about 493.6939552901.

The spelling of 120329865 in words is "one hundred twenty million, three hundred twenty-nine thousand, eight hundred sixty-five".