120941609 has 4 divisors (see below), whose sum is σ = 121388160. Its totient is φ = 120495060.

The previous prime is 120941603. The next prime is 120941651. The reversal of 120941609 is 906149021.

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: 906149021 = 571 ⋅1586951.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120941609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120941603) 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, 222869 + ... + 223410.

It is an arithmetic number, because the mean of its divisors is an integer number (30347040).

Almost surely, 2^120941609 is an apocalyptic number.

It is an amenable number.

120941609 is a deficient number, since it is larger than the sum of its proper divisors (446551).

120941609 is an equidigital number, since it uses as much as digits as its factorization.

120941609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446550.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 120941609 is about 10997.3455433573. The cubic root of 120941609 is about 494.5291703687.

The spelling of 120941609 in words is "one hundred twenty million, nine hundred forty-one thousand, six hundred nine".