120785429 has 4 divisors (see below), whose sum is σ = 122765580. Its totient is φ = 118805280.

The previous prime is 120785417. The next prime is 120785437. The reversal of 120785429 is 924587021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924587021 = 3067 ⋅301463.

It can be written as a sum of positive squares in 2 ways, for example, as 3648100 + 117137329 = 1910^2 + 10823^2 .

It is a cyclic number.

It is not a de Polignac number, because 120785429 - 2⁸ = 120785173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120785392 and 120785401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120785729) 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, 989984 + ... + 990105.

It is an arithmetic number, because the mean of its divisors is an integer number (30691395).

Almost surely, 2^120785429 is an apocalyptic number.

It is an amenable number.

120785429 is a deficient number, since it is larger than the sum of its proper divisors (1980151).

120785429 is an equidigital number, since it uses as much as digits as its factorization.

120785429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980150.

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

The square root of 120785429 is about 10990.2424450055. The cubic root of 120785429 is about 494.3162057906.

The spelling of 120785429 in words is "one hundred twenty million, seven hundred eighty-five thousand, four hundred twenty-nine".