120236505 has 16 divisors (see below), whose sum is σ = 192568320. Its totient is φ = 64062848.

The previous prime is 120236497. The next prime is 120236509. The reversal of 120236505 is 505632021.

It is a cyclic number.

It is not a de Polignac number, because 120236505 - 2³ = 120236497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120236509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14536 + ... + 21254.

It is an arithmetic number, because the mean of its divisors is an integer number (12035520).

Almost surely, 2^120236505 is an apocalyptic number.

120236505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120236505 is a deficient number, since it is larger than the sum of its proper divisors (72331815).

120236505 is a wasteful number, since it uses less digits than its factorization.

120236505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 120236505 is about 10965.2407634306. The cubic root of 120236505 is about 493.5662419331.

Adding to 120236505 its reverse (505632021), we get a palindrome (625868526).

It can be divided in two parts, 12023 and 6505, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 120236505 in words is "one hundred twenty million, two hundred thirty-six thousand, five hundred five".