63153940 has 24 divisors (see below), whose sum is σ = 135859752. Its totient is φ = 24645120.

The previous prime is 63153919. The next prime is 63153941. The reversal of 63153940 is 4935136.

63153940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6543364 + 56610576 = 2558^2 + 7524^2 .

It is a super-3 number, since 3×63153940³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63153941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37689 + ... + 39328.

It is an arithmetic number, because the mean of its divisors is an integer number (5660823).

Almost surely, 2^63153940 is an apocalyptic number.

It is an amenable number.

63153940 is an abundant number, since it is smaller than the sum of its proper divisors (72705812).

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

63153940 is a wasteful number, since it uses less digits than its factorization.

63153940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77067 (or 77065 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 63153940 is about 7946.9453250919. The cubic root of 63153940 is about 398.2295503313.

The spelling of 63153940 in words is "sixty-three million, one hundred fifty-three thousand, nine hundred forty".