120621236 has 12 divisors (see below), whose sum is σ = 211435812. Its totient is φ = 60211008.

The previous prime is 120621233. The next prime is 120621247. The reversal of 120621236 is 632126021.

It can be written as a sum of positive squares in 2 ways, for example, as 23716900 + 96904336 = 4870^2 + 9844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120621233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22145 + ... + 27048.

It is an arithmetic number, because the mean of its divisors is an integer number (17619651).

Almost surely, 2^120621236 is an apocalyptic number.

It is an amenable number.

120621236 is a deficient number, since it is larger than the sum of its proper divisors (90814576).

120621236 is a wasteful number, since it uses less digits than its factorization.

120621236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49810 (or 49808 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 120621236 is about 10982.7699602605. The cubic root of 120621236 is about 494.0921167693.

Adding to 120621236 its reverse (632126021), we get a palindrome (752747257).

The spelling of 120621236 in words is "one hundred twenty million, six hundred twenty-one thousand, two hundred thirty-six".