63109312 has 28 divisors (see below), whose sum is σ = 143123920. Its totient is φ = 27046656.

The previous prime is 63109289. The next prime is 63109327. The reversal of 63109312 is 21390136.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×63109312² = 7965570522226688, which contains 22 as substring.

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, 69987 + ... + 70882.

Almost surely, 2^63109312 is an apocalyptic number.

It is an amenable number.

63109312 is an abundant number, since it is smaller than the sum of its proper divisors (80014608).

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

63109312 is a wasteful number, since it uses less digits than its factorization.

63109312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140888 (or 140878 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 63109312 is about 7944.1369575304. The cubic root of 63109312 is about 398.1357246926.

Adding to 63109312 its reverse (21390136), we get a palindrome (84499448).

The spelling of 63109312 in words is "sixty-three million, one hundred nine thousand, three hundred twelve".