63781141 has 8 divisors (see below), whose sum is σ = 64370880. Its totient is φ = 63194208.

The previous prime is 63781129. The next prime is 63781153. The reversal of 63781141 is 14118736.

It is an interprime number because it is at equal distance from previous prime (63781129) and next prime (63781153).

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 63781141 - 2⁷ = 63781013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63781111) 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, 102730 + ... + 103348.

It is an arithmetic number, because the mean of its divisors is an integer number (8046360).

Almost surely, 2^63781141 is an apocalyptic number.

It is an amenable number.

63781141 is a deficient number, since it is larger than the sum of its proper divisors (589739).

63781141 is a wasteful number, since it uses less digits than its factorization.

63781141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its digits is 4032, while the sum is 31.

The square root of 63781141 is about 7986.3095983063. The cubic root of 63781141 is about 399.5435230201.

Adding to 63781141 its reverse (14118736), we get a palindrome (77899877).

The spelling of 63781141 in words is "sixty-three million, seven hundred eighty-one thousand, one hundred forty-one".