120071506 has 4 divisors (see below), whose sum is σ = 180107262. Its totient is φ = 60035752.

The previous prime is 120071491. The next prime is 120071509. The reversal of 120071506 is 605170021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 119705481 + 366025 = 10941^2 + 605^2 .

It is not an unprimeable number, because it can be changed into a prime (120071509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30017875 + ... + 30017878.

Almost surely, 2^120071506 is an apocalyptic number.

120071506 is a deficient number, since it is larger than the sum of its proper divisors (60035756).

120071506 is an equidigital number, since it uses as much as digits as its factorization.

120071506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60035755.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 120071506 is about 10957.7144514721. The cubic root of 120071506 is about 493.3403670574.

The spelling of 120071506 in words is "one hundred twenty million, seventy-one thousand, five hundred six".