120577409 has 2 divisors, whose sum is σ = 120577410. Its totient is φ = 120577408.

The previous prime is 120577403. The next prime is 120577423. The reversal of 120577409 is 904775021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100801600 + 19775809 = 10040^2 + 4447^2 .

It is a cyclic number.

It is not a de Polignac number, because 120577409 - 2⁴ = 120577393 is a prime.

It is a super-2 number, since 2×120577409² = 29077823122306562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (120577403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60288704 + 60288705.

It is an arithmetic number, because the mean of its divisors is an integer number (60288705).

Almost surely, 2^120577409 is an apocalyptic number.

It is an amenable number.

120577409 is a deficient number, since it is larger than the sum of its proper divisors (1).

120577409 is an equidigital number, since it uses as much as digits as its factorization.

120577409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 120577409 is about 10980.7745173098. The cubic root of 120577409 is about 494.0322677213.

The spelling of 120577409 in words is "one hundred twenty million, five hundred seventy-seven thousand, four hundred nine".