63243120 has 40 divisors (see below), whose sum is σ = 196054416. Its totient is φ = 16864768.

The previous prime is 63243119. The next prime is 63243121. The reversal of 63243120 is 2134236.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (63243119) and next prime (63243121).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63243121) 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 7 ways as a sum of consecutive naturals, for example, 131517 + ... + 131996.

Almost surely, 2^63243120 is an apocalyptic number.

63243120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63243120 is an abundant number, since it is smaller than the sum of its proper divisors (132811296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63243120 is a wasteful number, since it uses less digits than its factorization.

63243120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263529 (or 263523 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 63243120 is about 7952.5543066363. The cubic root of 63243120 is about 398.4169094934.

Adding to 63243120 its reverse (2134236), we get a palindrome (65377356).

The spelling of 63243120 in words is "sixty-three million, two hundred forty-three thousand, one hundred twenty".