63033140 has 12 divisors (see below), whose sum is σ = 132369636. Its totient is φ = 25213248.

The previous prime is 63033121. The next prime is 63033149. The reversal of 63033140 is 4133036.

It can be written as a sum of positive squares in 2 ways, for example, as 42276004 + 20757136 = 6502^2 + 4556^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3151657 = 63033140 / (6 + 3 + 0 + 3 + 3 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63033149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575809 + ... + 1575848.

It is an arithmetic number, because the mean of its divisors is an integer number (11030803).

Almost surely, 2^63033140 is an apocalyptic number.

It is an amenable number.

63033140 is an abundant number, since it is smaller than the sum of its proper divisors (69336496).

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

63033140 is a wasteful number, since it uses less digits than its factorization.

63033140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151666 (or 3151664 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 63033140 is about 7939.3412824994. The cubic root of 63033140 is about 397.9754789064.

Adding to 63033140 its reverse (4133036), we get a palindrome (67166176).

The spelling of 63033140 in words is "sixty-three million, thirty-three thousand, one hundred forty".