63144701 has 4 divisors (see below), whose sum is σ = 63332412. Its totient is φ = 62956992.

The previous prime is 63144671. The next prime is 63144703. The reversal of 63144701 is 10744136.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25260676 + 37884025 = 5026^2 + 6155^2 .

It is not a de Polignac number, because 63144701 - 2¹⁸ = 62882557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63144703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93350 + ... + 94023.

It is an arithmetic number, because the mean of its divisors is an integer number (15833103).

Almost surely, 2^63144701 is an apocalyptic number.

It is an amenable number.

63144701 is a deficient number, since it is larger than the sum of its proper divisors (187711).

63144701 is a wasteful number, since it uses less digits than its factorization.

63144701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187710.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 63144701 is about 7946.3640112947. The cubic root of 63144701 is about 398.2101299423.

Adding to 63144701 its reverse (10744136), we get a palindrome (73888837).

The spelling of 63144701 in words is "sixty-three million, one hundred forty-four thousand, seven hundred one".