63438149 has 2 divisors, whose sum is σ = 63438150. Its totient is φ = 63438148.

The previous prime is 63438143. The next prime is 63438187. The reversal of 63438149 is 94183436.

It is an a-pointer prime, because the next prime (63438187) can be obtained adding 63438149 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 1737124 = 7855^2 + 1318^2 .

It is a cyclic number.

It is not a de Polignac number, because 63438149 - 2⁸ = 63437893 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63438143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31719074 + 31719075.

It is an arithmetic number, because the mean of its divisors is an integer number (31719075).

Almost surely, 2^63438149 is an apocalyptic number.

It is an amenable number.

63438149 is a deficient number, since it is larger than the sum of its proper divisors (1).

63438149 is an equidigital number, since it uses as much as digits as its factorization.

63438149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 63438149 is about 7964.8069028696. The cubic root of 63438149 is about 398.8260349693.

It can be divided in two parts, 634 and 38149, that added together give a palindrome (38783).

The spelling of 63438149 in words is "sixty-three million, four hundred thirty-eight thousand, one hundred forty-nine".