63201613 has 2 divisors, whose sum is σ = 63201614. Its totient is φ = 63201612.

The previous prime is 63201577. The next prime is 63201617. The reversal of 63201613 is 31610236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 15342889 = 6918^2 + 3917^2 .

It is a cyclic number.

It is not a de Polignac number, because 63201613 - 2¹³ = 63193421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63201617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31600806 + 31600807.

It is an arithmetic number, because the mean of its divisors is an integer number (31600807).

Almost surely, 2^63201613 is an apocalyptic number.

It is an amenable number.

63201613 is a deficient number, since it is larger than the sum of its proper divisors (1).

63201613 is an equidigital number, since it uses as much as digits as its factorization.

63201613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 63201613 is about 7949.9442136407. The cubic root of 63201613 is about 398.3297289443.

Adding to 63201613 its reverse (31610236), we get a palindrome (94811849).

The spelling of 63201613 in words is "sixty-three million, two hundred one thousand, six hundred thirteen".