120520415 has 8 divisors (see below), whose sum is σ = 145246608. Its totient is φ = 96001600.

The previous prime is 120520409. The next prime is 120520423. The reversal of 120520415 is 514025021.

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

It is a de Polignac number, because none of the positive numbers 2^k-120520415 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50561 + ... + 52890.

It is an arithmetic number, because the mean of its divisors is an integer number (18155826).

Almost surely, 2^120520415 is an apocalyptic number.

120520415 is a deficient number, since it is larger than the sum of its proper divisors (24726193).

120520415 is a wasteful number, since it uses less digits than its factorization.

120520415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103689.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 120520415 is about 10978.1790384380. The cubic root of 120520415 is about 493.9544164532.

Adding to 120520415 its reverse (514025021), we get a palindrome (634545436).

The spelling of 120520415 in words is "one hundred twenty million, five hundred twenty thousand, four hundred fifteen".