63317131 has 8 divisors (see below), whose sum is σ = 65447424. Its totient is φ = 61219560.

The previous prime is 63317117. The next prime is 63317167. The reversal of 63317131 is 13171336.

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 63317131 - 2¹³ = 63308939 is a prime.

It is a super-2 number, since 2×63317131² = 8018118156142322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63317096 and 63317105.

It is not an unprimeable number, because it can be changed into a prime (63317171) 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, 4215 + ... + 12016.

It is an arithmetic number, because the mean of its divisors is an integer number (8180928).

Almost surely, 2^63317131 is an apocalyptic number.

63317131 is a deficient number, since it is larger than the sum of its proper divisors (2130293).

63317131 is a wasteful number, since it uses less digits than its factorization.

63317131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16361.

The product of its digits is 1134, while the sum is 25.

The square root of 63317131 is about 7957.2062308325. The cubic root of 63317131 is about 398.5722662541.

Adding to 63317131 its reverse (13171336), we get a palindrome (76488467).

The spelling of 63317131 in words is "sixty-three million, three hundred seventeen thousand, one hundred thirty-one".