120863705 has 4 divisors (see below), whose sum is σ = 145036452. Its totient is φ = 96690960.

The previous prime is 120863671. The next prime is 120863711. The reversal of 120863705 is 507368021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507368021 = 29 ⋅17495449.

It can be written as a sum of positive squares in 2 ways, for example, as 36517849 + 84345856 = 6043^2 + 9184^2 .

It is not a de Polignac number, because 120863705 - 2⁶ = 120863641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12086366 + ... + 12086375.

It is an arithmetic number, because the mean of its divisors is an integer number (36259113).

Almost surely, 2^120863705 is an apocalyptic number.

It is an amenable number.

120863705 is a deficient number, since it is larger than the sum of its proper divisors (24172747).

120863705 is an equidigital number, since it uses as much as digits as its factorization.

120863705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24172746.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 120863705 is about 10993.8030271603. The cubic root of 120863705 is about 494.4229646389.

The spelling of 120863705 in words is "one hundred twenty million, eight hundred sixty-three thousand, seven hundred five".