63147530 has 16 divisors (see below), whose sum is σ = 116738280. Its totient is φ = 24576192.

The previous prime is 63147517. The next prime is 63147533. The reversal of 63147530 is 3574136.

It can be written as a sum of positive squares in 4 ways, for example, as 62047129 + 1100401 = 7877^2 + 1049^2 .

It is a super-2 number, since 2×63147530² = 7975221090201800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63147493 and 63147502.

It is not an unprimeable number, because it can be changed into a prime (63147533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84965 + ... + 85704.

Almost surely, 2^63147530 is an apocalyptic number.

63147530 is a deficient number, since it is larger than the sum of its proper divisors (53590750).

63147530 is a wasteful number, since it uses less digits than its factorization.

63147530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170713.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 63147530 is about 7946.5420152416. The cubic root of 63147530 is about 398.2160767049.

The spelling of 63147530 in words is "sixty-three million, one hundred forty-seven thousand, five hundred thirty".