120453609 has 4 divisors (see below), whose sum is σ = 160604816. Its totient is φ = 80302404.

The previous prime is 120453601. The next prime is 120453629. The reversal of 120453609 is 906354021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906354021 = 3 ⋅302118007.

It is not a de Polignac number, because 120453609 - 2³ = 120453601 is a prime.

It is a super-2 number, since 2×120453609² = 29018143842249762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120453601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20075599 + ... + 20075604.

It is an arithmetic number, because the mean of its divisors is an integer number (40151204).

Almost surely, 2^120453609 is an apocalyptic number.

It is an amenable number.

120453609 is a deficient number, since it is larger than the sum of its proper divisors (40151207).

120453609 is an equidigital number, since it uses as much as digits as its factorization.

120453609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40151206.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 120453609 is about 10975.1359444883. The cubic root of 120453609 is about 493.8631311776.

The spelling of 120453609 in words is "one hundred twenty million, four hundred fifty-three thousand, six hundred nine".