120465581 has 2 divisors, whose sum is σ = 120465582. Its totient is φ = 120465580.

The previous prime is 120465563. The next prime is 120465593. The reversal of 120465581 is 185564021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106708900 + 13756681 = 10330^2 + 3709^2 .

It is a cyclic number.

It is not a de Polignac number, because 120465581 - 2¹⁰ = 120464557 is a prime.

It is a super-2 number, since 2×120465581² = 29023912411335122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120462581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60232790 + 60232791.

It is an arithmetic number, because the mean of its divisors is an integer number (60232791).

Almost surely, 2^120465581 is an apocalyptic number.

It is an amenable number.

120465581 is a deficient number, since it is larger than the sum of its proper divisors (1).

120465581 is an equidigital number, since it uses as much as digits as its factorization.

120465581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 120465581 is about 10975.6813455931. The cubic root of 120465581 is about 493.8794924793.

The spelling of 120465581 in words is "one hundred twenty million, four hundred sixty-five thousand, five hundred eighty-one".