120261601 has 2 divisors, whose sum is σ = 120261602. Its totient is φ = 120261600.

The previous prime is 120261599. The next prime is 120261613. The reversal of 120261601 is 106162021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102495376 + 17766225 = 10124^2 + 4215^2 .

It is a cyclic number.

It is not a de Polignac number, because 120261601 - 2¹ = 120261599 is a prime.

Together with 120261599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120261671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60130800 + 60130801.

It is an arithmetic number, because the mean of its divisors is an integer number (60130801).

Almost surely, 2^120261601 is an apocalyptic number.

It is an amenable number.

120261601 is a deficient number, since it is larger than the sum of its proper divisors (1).

120261601 is an equidigital number, since it uses as much as digits as its factorization.

120261601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 120261601 is about 10966.3850470426. The cubic root of 120261601 is about 493.6005789168.

The spelling of 120261601 in words is "one hundred twenty million, two hundred sixty-one thousand, six hundred one".