63142645 has 8 divisors (see below), whose sum is σ = 75817656. Its totient is φ = 50483136.

The previous prime is 63142633. The next prime is 63142661. The reversal of 63142645 is 54624136.

It can be written as a sum of positive squares in 4 ways, for example, as 527076 + 62615569 = 726^2 + 7913^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63142645 - 2⁷ = 63142517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8959 + ... + 14371.

It is an arithmetic number, because the mean of its divisors is an integer number (9477207).

Almost surely, 2^63142645 is an apocalyptic number.

It is an amenable number.

63142645 is a deficient number, since it is larger than the sum of its proper divisors (12675011).

63142645 is a wasteful number, since it uses less digits than its factorization.

63142645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7751.

The product of its digits is 17280, while the sum is 31.

The square root of 63142645 is about 7946.2346428985. The cubic root of 63142645 is about 398.2058079702.

The spelling of 63142645 in words is "sixty-three million, one hundred forty-two thousand, six hundred forty-five".