120413609 has 2 divisors, whose sum is σ = 120413610. Its totient is φ = 120413608.

The previous prime is 120413603. The next prime is 120413611. The reversal of 120413609 is 906314021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115885225 + 4528384 = 10765^2 + 2128^2 .

It is an emirp because it is prime and its reverse (906314021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120413609 - 2⁸ = 120413353 is a prime.

Together with 120413611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120413603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60206804 + 60206805.

It is an arithmetic number, because the mean of its divisors is an integer number (60206805).

Almost surely, 2^120413609 is an apocalyptic number.

It is an amenable number.

120413609 is a deficient number, since it is larger than the sum of its proper divisors (1).

120413609 is an equidigital number, since it uses as much as digits as its factorization.

120413609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 120413609 is about 10973.3134922866. The cubic root of 120413609 is about 493.8084580895.

The spelling of 120413609 in words is "one hundred twenty million, four hundred thirteen thousand, six hundred nine".