147981868 has 12 divisors (see below), whose sum is σ = 259126000. Its totient is φ = 73945872.

The previous prime is 147981863. The next prime is 147981881. The reversal of 147981868 is 868189741.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (147981863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3243 + ... + 17506.

Almost surely, 2^147981868 is an apocalyptic number.

It is an amenable number.

147981868 is a deficient number, since it is larger than the sum of its proper divisors (111144132).

147981868 is a wasteful number, since it uses less digits than its factorization.

147981868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22536 (or 22534 counting only the distinct ones).

The product of its digits is 774144, while the sum is 52.

The square root of 147981868 is about 12164.7798171607. The cubic root of 147981868 is about 528.9356449169.

The spelling of 147981868 in words is "one hundred forty-seven million, nine hundred eighty-one thousand, eight hundred sixty-eight".