63461257 has 2 divisors, whose sum is σ = 63461258. Its totient is φ = 63461256.

The previous prime is 63461239. The next prime is 63461263. The reversal of 63461257 is 75216436.

It is a happy number.

63461257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59151481 + 4309776 = 7691^2 + 2076^2 .

It is a cyclic number.

It is not a de Polignac number, because 63461257 - 2⁷ = 63461129 is a prime.

It is a super-2 number, since 2×63461257² = 8054662280040098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63461207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31730628 + 31730629.

It is an arithmetic number, because the mean of its divisors is an integer number (31730629).

Almost surely, 2^63461257 is an apocalyptic number.

It is an amenable number.

63461257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63461257 is an equidigital number, since it uses as much as digits as its factorization.

63461257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 63461257 is about 7966.2574023189. The cubic root of 63461257 is about 398.8744545894.

The spelling of 63461257 in words is "sixty-three million, four hundred sixty-one thousand, two hundred fifty-seven".