144084138 has 24 divisors (see below), whose sum is σ = 316748544. Its totient is φ = 43661640.

The previous prime is 144084131. The next prime is 144084173. The reversal of 144084138 is 831480441.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 144084099 and 144084108.

It is not an unprimeable number, because it can be changed into a prime (144084131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98506 + ... + 99957.

It is an arithmetic number, because the mean of its divisors is an integer number (13197856).

Almost surely, 2^144084138 is an apocalyptic number.

144084138 is an abundant number, since it is smaller than the sum of its proper divisors (172664406).

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

144084138 is a wasteful number, since it uses less digits than its factorization.

144084138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198490 (or 198479 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 144084138 is about 12003.5052380544. The cubic root of 144084138 is about 524.2503441229.

The spelling of 144084138 in words is "one hundred forty-four million, eighty-four thousand, one hundred thirty-eight".