120071643 has 8 divisors (see below), whose sum is σ = 160178256. Its totient is φ = 80006400.

The previous prime is 120071617. The next prime is 120071683. The reversal of 120071643 is 346170021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120071643 - 2⁸ = 120071387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120071603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2778 + ... + 15743.

It is an arithmetic number, because the mean of its divisors is an integer number (20022282).

Almost surely, 2^120071643 is an apocalyptic number.

120071643 is a deficient number, since it is larger than the sum of its proper divisors (40106613).

120071643 is a wasteful number, since it uses less digits than its factorization.

120071643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20685.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 120071643 is about 10957.7207027739. The cubic root of 120071643 is about 493.3405546890.

The spelling of 120071643 in words is "one hundred twenty million, seventy-one thousand, six hundred forty-three".