120351409 has 2 divisors, whose sum is σ = 120351410. Its totient is φ = 120351408.

The previous prime is 120351373. The next prime is 120351463. The reversal of 120351409 is 904153021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117939600 + 2411809 = 10860^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 120351409 - 2¹⁷ = 120220337 is a prime.

It is not a weakly prime, because it can be changed into another prime (120352409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60175704 + 60175705.

It is an arithmetic number, because the mean of its divisors is an integer number (60175705).

Almost surely, 2^120351409 is an apocalyptic number.

It is an amenable number.

120351409 is a deficient number, since it is larger than the sum of its proper divisors (1).

120351409 is an equidigital number, since it uses as much as digits as its factorization.

120351409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 120351409 is about 10970.4789776928. The cubic root of 120351409 is about 493.7234173800.

The spelling of 120351409 in words is "one hundred twenty million, three hundred fifty-one thousand, four hundred nine".