120517245 has 48 divisors (see below), whose sum is σ = 216844992. Its totient is φ = 61873920.

The previous prime is 120517237. The next prime is 120517253. The reversal of 120517245 is 542715021.

120517245 is a `hidden beast` number, since 120 + 517 + 24 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (120517237) and next prime (120517253).

It is not a de Polignac number, because 120517245 - 2³ = 120517237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152742 + ... + 153528.

It is an arithmetic number, because the mean of its divisors is an integer number (4517604).

Almost surely, 2^120517245 is an apocalyptic number.

120517245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120517245 is a deficient number, since it is larger than the sum of its proper divisors (96327747).

120517245 is a wasteful number, since it uses less digits than its factorization.

120517245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 120517245 is about 10978.0346601748. The cubic root of 120517245 is about 493.9500856538.

The spelling of 120517245 in words is "one hundred twenty million, five hundred seventeen thousand, two hundred forty-five".