63131245 has 8 divisors (see below), whose sum is σ = 76017816. Its totient is φ = 50331456.

The previous prime is 63131147. The next prime is 63131249. The reversal of 63131245 is 54213136.

It can be written as a sum of positive squares in 4 ways, for example, as 14424804 + 48706441 = 3798^2 + 6979^2 .

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 63131245 - 2¹¹ = 63129197 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 (63131249) 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, 20082 + ... + 23011.

It is an arithmetic number, because the mean of its divisors is an integer number (9502227).

Almost surely, 2^63131245 is an apocalyptic number.

It is an amenable number.

63131245 is a deficient number, since it is larger than the sum of its proper divisors (12886571).

63131245 is a wasteful number, since it uses less digits than its factorization.

63131245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43391.

The product of its digits is 2160, while the sum is 25.

The square root of 63131245 is about 7945.5172896420. The cubic root of 63131245 is about 398.1818420254.

The spelling of 63131245 in words is "sixty-three million, one hundred thirty-one thousand, two hundred forty-five".