63139450 has 24 divisors (see below), whose sum is σ = 128116800. Its totient is φ = 22959600.

The previous prime is 63139441. The next prime is 63139457. The reversal of 63139450 is 5493136.

It is a super-3 number, since 3×63139450³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (63139457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56850 + ... + 57949.

It is an arithmetic number, because the mean of its divisors is an integer number (5338200).

Almost surely, 2^63139450 is an apocalyptic number.

63139450 is an abundant number, since it is smaller than the sum of its proper divisors (64977350).

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

63139450 is a wasteful number, since it uses less digits than its factorization.

63139450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114822 (or 114817 counting only the distinct ones).

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

The square root of 63139450 is about 7946.0336017412. The cubic root of 63139450 is about 398.1990914898.

The spelling of 63139450 in words is "sixty-three million, one hundred thirty-nine thousand, four hundred fifty".