120704581 has 2 divisors, whose sum is σ = 120704582. Its totient is φ = 120704580.

The previous prime is 120704531. The next prime is 120704593. The reversal of 120704581 is 185407021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116964225 + 3740356 = 10815^2 + 1934^2 .

It is an emirp because it is prime and its reverse (185407021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120704581 - 2²⁵ = 87150149 is a prime.

It is a super-2 number, since 2×120704581² = 29139191748771122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120704531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60352290 + 60352291.

It is an arithmetic number, because the mean of its divisors is an integer number (60352291).

Almost surely, 2^120704581 is an apocalyptic number.

It is an amenable number.

120704581 is a deficient number, since it is larger than the sum of its proper divisors (1).

120704581 is an equidigital number, since it uses as much as digits as its factorization.

120704581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 120704581 is about 10986.5636574864. The cubic root of 120704581 is about 494.2058906171.

The spelling of 120704581 in words is "one hundred twenty million, seven hundred four thousand, five hundred eighty-one".