1481221148 has 48 divisors (see below), whose sum is σ = 2912329728. Its totient is φ = 653256000.

The previous prime is 1481221141. The next prime is 1481221177. The reversal of 1481221148 is 8411221841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481221141) 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, 700613 + ... + 702723.

It is an arithmetic number, because the mean of its divisors is an integer number (60673536).

Almost surely, 2^1481221148 is an apocalyptic number.

It is an amenable number.

1481221148 is a deficient number, since it is larger than the sum of its proper divisors (1431108580).

1481221148 is a wasteful number, since it uses less digits than its factorization.

1481221148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594 (or 2592 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The square root of 1481221148 is about 38486.6359662676. The cubic root of 1481221148 is about 1139.9171859407.

Adding to 1481221148 its reverse (8411221841), we get a palindrome (9892442989).

The spelling of 1481221148 in words is "one billion, four hundred eighty-one million, two hundred twenty-one thousand, one hundred forty-eight".