63138274 has 4 divisors (see below), whose sum is σ = 94707414. Its totient is φ = 31569136.

The previous prime is 63138263. The next prime is 63138281. The reversal of 63138274 is 47283136.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61512649 + 1625625 = 7843^2 + 1275^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15784567 + ... + 15784570.

Almost surely, 2^63138274 is an apocalyptic number.

63138274 is a deficient number, since it is larger than the sum of its proper divisors (31569140).

63138274 is a wasteful number, since it uses less digits than its factorization.

63138274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31569139.

The product of its digits is 24192, while the sum is 34.

The square root of 63138274 is about 7945.9596022129. The cubic root of 63138274 is about 398.1966192634.

The spelling of 63138274 in words is "sixty-three million, one hundred thirty-eight thousand, two hundred seventy-four".