145638184 has 16 divisors (see below), whose sum is σ = 289134900. Its totient is φ = 68535552.

The previous prime is 145638169. The next prime is 145638187. The reversal of 145638184 is 481836541.

It can be written as a sum of positive squares in 2 ways, for example, as 138721284 + 6916900 = 11778^2 + 2630^2 .

It is not an unprimeable number, because it can be changed into a prime (145638187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535299 + ... + 535570.

Almost surely, 2^145638184 is an apocalyptic number.

It is an amenable number.

145638184 is a deficient number, since it is larger than the sum of its proper divisors (143496716).

145638184 is a wasteful number, since it uses less digits than its factorization.

145638184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070892 (or 1070888 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 145638184 is about 12068.0646335690. The cubic root of 145638184 is about 526.1284076910.

The spelling of 145638184 in words is "one hundred forty-five million, six hundred thirty-eight thousand, one hundred eighty-four".