120425581 has 2 divisors, whose sum is σ = 120425582. Its totient is φ = 120425580.

The previous prime is 120425579. The next prime is 120425587. The reversal of 120425581 is 185524021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120340900 + 84681 = 10970^2 + 291^2 .

It is an emirp because it is prime and its reverse (185524021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120425581 - 2¹ = 120425579 is a prime.

It is a super-2 number, since 2×120425581² = 29004641118375122, which contains 22 as substring.

Together with 120425579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120425587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60212790 + 60212791.

It is an arithmetic number, because the mean of its divisors is an integer number (60212791).

Almost surely, 2^120425581 is an apocalyptic number.

It is an amenable number.

120425581 is a deficient number, since it is larger than the sum of its proper divisors (1).

120425581 is an equidigital number, since it uses as much as digits as its factorization.

120425581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 120425581 is about 10973.8589839673. The cubic root of 120425581 is about 493.8248230142.

The spelling of 120425581 in words is "one hundred twenty million, four hundred twenty-five thousand, five hundred eighty-one".