120765231 has 12 divisors (see below), whose sum is σ = 178150752. Its totient is φ = 78796896.

The previous prime is 120765223. The next prime is 120765241. The reversal of 120765231 is 132567021.

It is a happy number.

120765231 is a `hidden beast` number, since 1 + 2 + 0 + 7 + 652 + 3 + 1 = 666.

It is not a de Polignac number, because 120765231 - 2³ = 120765223 is a prime.

It is a super-2 number, since 2×120765231² = 29168482036966722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120765195 and 120765204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120765221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142326 + ... + 143171.

It is an arithmetic number, because the mean of its divisors is an integer number (14845896).

Almost surely, 2^120765231 is an apocalyptic number.

120765231 is a deficient number, since it is larger than the sum of its proper divisors (57385521).

120765231 is a wasteful number, since it uses less digits than its factorization.

120765231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285550 (or 285547 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 120765231 is about 10989.3235005618. The cubic root of 120765231 is about 494.2886507139.

It can be divided in two parts, 120765 and 231, that multiplied together give a triangular number (27896715 = T₇₄₆₉).

The spelling of 120765231 in words is "one hundred twenty million, seven hundred sixty-five thousand, two hundred thirty-one".