63151313 has 2 divisors, whose sum is σ = 63151314. Its totient is φ = 63151312.

The previous prime is 63151289. The next prime is 63151343. The reversal of 63151313 is 31315136.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48344209 + 14807104 = 6953^2 + 3848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63151313 is a prime.

It is not a weakly prime, because it can be changed into another prime (63151343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31575656 + 31575657.

It is an arithmetic number, because the mean of its divisors is an integer number (31575657).

Almost surely, 2^63151313 is an apocalyptic number.

It is an amenable number.

63151313 is a deficient number, since it is larger than the sum of its proper divisors (1).

63151313 is an equidigital number, since it uses as much as digits as its factorization.

63151313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 23.

The square root of 63151313 is about 7946.7800397394. The cubic root of 63151313 is about 398.2240285669.

Adding to 63151313 its reverse (31315136), we get a palindrome (94466449).

The spelling of 63151313 in words is "sixty-three million, one hundred fifty-one thousand, three hundred thirteen".