120509197 has 4 divisors (see below), whose sum is σ = 120533920. Its totient is φ = 120484476.

The previous prime is 120509161. The next prime is 120509219. The reversal of 120509197 is 791905021.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120509197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120509117) 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, 2343 + ... + 15700.

It is an arithmetic number, because the mean of its divisors is an integer number (30133480).

Almost surely, 2^120509197 is an apocalyptic number.

It is an amenable number.

120509197 is a deficient number, since it is larger than the sum of its proper divisors (24723).

120509197 is an equidigital number, since it uses as much as digits as its factorization.

120509197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24722.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 120509197 is about 10977.6681039281. The cubic root of 120509197 is about 493.9390902736.

The spelling of 120509197 in words is "one hundred twenty million, five hundred nine thousand, one hundred ninety-seven".