63148765 has 4 divisors (see below), whose sum is σ = 75778524. Its totient is φ = 50519008.

The previous prime is 63148763. The next prime is 63148817. The reversal of 63148765 is 56784136.

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 2 ways, for example, as 26594649 + 36554116 = 5157^2 + 6046^2 .

It is a cyclic number.

It is not a de Polignac number, because 63148765 - 2¹ = 63148763 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63148763) 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, 6314872 + ... + 6314881.

It is an arithmetic number, because the mean of its divisors is an integer number (18944631).

Almost surely, 2^63148765 is an apocalyptic number.

It is an amenable number.

63148765 is a deficient number, since it is larger than the sum of its proper divisors (12629759).

63148765 is a wasteful number, since it uses less digits than its factorization.

63148765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629758.

The product of its digits is 120960, while the sum is 40.

The square root of 63148765 is about 7946.6197216175. The cubic root of 63148765 is about 398.2186727085.

The spelling of 63148765 in words is "sixty-three million, one hundred forty-eight thousand, seven hundred sixty-five".