145897384 has 16 divisors (see below), whose sum is σ = 273690900. Its totient is φ = 72913152.

The previous prime is 145897361. The next prime is 145897397. The reversal of 145897384 is 483798541.

It can be written as a sum of positive squares in 2 ways, for example, as 144528484 + 1368900 = 12022^2 + 1170^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22902 + ... + 28570.

Almost surely, 2^145897384 is an apocalyptic number.

It is an amenable number.

145897384 is a deficient number, since it is larger than the sum of its proper divisors (127793516).

145897384 is a wasteful number, since it uses less digits than its factorization.

145897384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892 (or 8888 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 145897384 is about 12078.7989469152. The cubic root of 145897384 is about 526.4403489149.

The spelling of 145897384 in words is "one hundred forty-five million, eight hundred ninety-seven thousand, three hundred eighty-four".