63145730 has 16 divisors (see below), whose sum is σ = 115220664. Its totient is φ = 24912000.

The previous prime is 63145703. The next prime is 63145757. The reversal of 63145730 is 3754136.

It is an interprime number because it is at equal distance from previous prime (63145703) and next prime (63145757).

It can be written as a sum of positive squares in 4 ways, for example, as 60543961 + 2601769 = 7781^2 + 1613^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63145693 and 63145702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42521 + ... + 43980.

Almost surely, 2^63145730 is an apocalyptic number.

63145730 is a deficient number, since it is larger than the sum of its proper divisors (52074934).

63145730 is a wasteful number, since it uses less digits than its factorization.

63145730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86581.

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

The square root of 63145730 is about 7946.4287576244. The cubic root of 63145730 is about 398.2122929953.

Adding to 63145730 its reverse (3754136), we get a palindrome (66899866).

The spelling of 63145730 in words is "sixty-three million, one hundred forty-five thousand, seven hundred thirty".