120930257 has 8 divisors (see below), whose sum is σ = 138547200. Its totient is φ = 103398624.

The previous prime is 120930241. The next prime is 120930281. The reversal of 120930257 is 752039021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120930257 - 2⁴ = 120930241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120930217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18257 + ... + 23982.

It is an arithmetic number, because the mean of its divisors is an integer number (17318400).

Almost surely, 2^120930257 is an apocalyptic number.

It is an amenable number.

120930257 is a deficient number, since it is larger than the sum of its proper divisors (17616943).

120930257 is an equidigital number, since it uses as much as digits as its factorization.

120930257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42655.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 120930257 is about 10996.8294066972. The cubic root of 120930257 is about 494.5136971420.

Adding to 120930257 its reverse (752039021), we get a palindrome (872969278).

The spelling of 120930257 in words is "one hundred twenty million, nine hundred thirty thousand, two hundred fifty-seven".