144534636 has 72 divisors (see below), whose sum is σ = 373062144. Its totient is φ = 47174400.

The previous prime is 144534583. The next prime is 144534641. The reversal of 144534636 is 636435441.

144534636 is a `hidden beast` number, since 14 + 4 + 5 + 3 + 4 + 636 = 666.

144534636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×144534636² = 41780522007304992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 144534636.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461616 + ... + 461928.

Almost surely, 2^144534636 is an apocalyptic number.

It is an amenable number.

144534636 is an abundant number, since it is smaller than the sum of its proper divisors (228527508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144534636 is a wasteful number, since it uses less digits than its factorization.

144534636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 546 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 144534636 is about 12022.2558615262. The cubic root of 144534636 is about 524.7961548756.

The spelling of 144534636 in words is "one hundred forty-four million, five hundred thirty-four thousand, six hundred thirty-six".