63148381 has 16 divisors (see below), whose sum is σ = 69889600. Its totient is φ = 56827008.

The previous prime is 63148367. The next prime is 63148391. The reversal of 63148381 is 18384136.

It is a cyclic number.

It is not a de Polignac number, because 63148381 - 2²¹ = 61051229 is a prime.

It is a super-2 number, since 2×63148381² = 7975436045842322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63148301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29185 + ... + 31273.

It is an arithmetic number, because the mean of its divisors is an integer number (4368100).

Almost surely, 2^63148381 is an apocalyptic number.

It is an amenable number.

63148381 is a deficient number, since it is larger than the sum of its proper divisors (6741219).

63148381 is a wasteful number, since it uses less digits than its factorization.

63148381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188.

The product of its digits is 13824, while the sum is 34.

The square root of 63148381 is about 7946.5955603642. The cubic root of 63148381 is about 398.2178655337.

The spelling of 63148381 in words is "sixty-three million, one hundred forty-eight thousand, three hundred eighty-one".