120137217 has 8 divisors (see below), whose sum is σ = 163591296. Its totient is φ = 78387312.

The previous prime is 120137207. The next prime is 120137221. The reversal of 120137217 is 712731021.

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

It is not a de Polignac number, because 120137217 - 2⁴ = 120137201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120137207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425878 + ... + 426159.

It is an arithmetic number, because the mean of its divisors is an integer number (20448912).

Almost surely, 2^120137217 is an apocalyptic number.

It is an amenable number.

120137217 is a deficient number, since it is larger than the sum of its proper divisors (43454079).

120137217 is an equidigital number, since it uses as much as digits as its factorization.

120137217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852087.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 120137217 is about 10960.7124312245. The cubic root of 120137217 is about 493.4303467093.

Adding to 120137217 its reverse (712731021), we get a palindrome (832868238).

The spelling of 120137217 in words is "one hundred twenty million, one hundred thirty-seven thousand, two hundred seventeen".