120440641 has 2 divisors, whose sum is σ = 120440642. Its totient is φ = 120440640.

The previous prime is 120440599. The next prime is 120440647. The reversal of 120440641 is 146044021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109411600 + 11029041 = 10460^2 + 3321^2 .

It is an emirp because it is prime and its reverse (146044021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120440641 - 2⁹ = 120440129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120440647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60220320 + 60220321.

It is an arithmetic number, because the mean of its divisors is an integer number (60220321).

Almost surely, 2^120440641 is an apocalyptic number.

It is an amenable number.

120440641 is a deficient number, since it is larger than the sum of its proper divisors (1).

120440641 is an equidigital number, since it uses as much as digits as its factorization.

120440641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 120440641 is about 10974.5451386379. The cubic root of 120440641 is about 493.8454074885.

Adding to 120440641 its reverse (146044021), we get a palindrome (266484662).

The spelling of 120440641 in words is "one hundred twenty million, four hundred forty thousand, six hundred forty-one".