145544636 has 48 divisors (see below), whose sum is σ = 275775360. Its totient is φ = 67003200.

The previous prime is 145544627. The next prime is 145544647. The reversal of 145544636 is 636445541.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 145544636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514151 + ... + 514433.

It is an arithmetic number, because the mean of its divisors is an integer number (5745320).

Almost surely, 2^145544636 is an apocalyptic number.

It is an amenable number.

145544636 is a deficient number, since it is larger than the sum of its proper divisors (130230724).

145544636 is a wasteful number, since it uses less digits than its factorization.

145544636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 472 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 145544636 is about 12064.1881616626. The cubic root of 145544636 is about 526.0157339383.

The spelling of 145544636 in words is "one hundred forty-five million, five hundred forty-four thousand, six hundred thirty-six".