145481384 has 16 divisors (see below), whose sum is σ = 279121920. Its totient is φ = 71048880.

The previous prime is 145481383. The next prime is 145481389. The reversal of 145481384 is 483184541.

145481384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145481383) 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, 211112 + ... + 211799.

It is an arithmetic number, because the mean of its divisors is an integer number (17445120).

Almost surely, 2^145481384 is an apocalyptic number.

It is an amenable number.

145481384 is a deficient number, since it is larger than the sum of its proper divisors (133640536).

145481384 is a wasteful number, since it uses less digits than its factorization.

145481384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422960 (or 422956 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 145481384 is about 12061.5663991042. The cubic root of 145481384 is about 525.9395227977.

The spelling of 145481384 in words is "one hundred forty-five million, four hundred eighty-one thousand, three hundred eighty-four".