63151840 has 24 divisors (see below), whose sum is σ = 149196600. Its totient is φ = 25260672.

The previous prime is 63151831. The next prime is 63151853. The reversal of 63151840 is 4815136.

It is a junction number, because it is equal to n+sod(n) for n = 63151799 and 63151808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197190 + ... + 197509.

It is an arithmetic number, because the mean of its divisors is an integer number (6216525).

Almost surely, 2^63151840 is an apocalyptic number.

It is an amenable number.

63151840 is an abundant number, since it is smaller than the sum of its proper divisors (86044760).

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

63151840 is a wasteful number, since it uses less digits than its factorization.

63151840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394714 (or 394706 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 63151840 is about 7946.8131977542. The cubic root of 63151840 is about 398.2251362951.

Adding to 63151840 its reverse (4815136), we get a palindrome (67966976).

The spelling of 63151840 in words is "sixty-three million, one hundred fifty-one thousand, eight hundred forty".