120047709 has 4 divisors (see below), whose sum is σ = 160063616. Its totient is φ = 80031804.

The previous prime is 120047657. The next prime is 120047731. The reversal of 120047709 is 907740021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120047709 - 2¹⁵ = 120014941 is a prime.

It is a super-2 number, since 2×120047709² = 28822904872297362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120047789) 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, 20007949 + ... + 20007954.

It is an arithmetic number, because the mean of its divisors is an integer number (40015904).

Almost surely, 2^120047709 is an apocalyptic number.

It is an amenable number.

120047709 is a deficient number, since it is larger than the sum of its proper divisors (40015907).

120047709 is an equidigital number, since it uses as much as digits as its factorization.

120047709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40015906.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 120047709 is about 10956.6285416637. The cubic root of 120047709 is about 493.3077731563.

The spelling of 120047709 in words is "one hundred twenty million, forty-seven thousand, seven hundred nine".