144857136 has 80 divisors (see below), whose sum is σ = 398974464. Its totient is φ = 45130752.

The previous prime is 144857123. The next prime is 144857171. The reversal of 144857136 is 631758441.

It is a junction number, because it is equal to n+sod(n) for n = 144857094 and 144857103.

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, 135741 + ... + 136803.

Almost surely, 2^144857136 is an apocalyptic number.

144857136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144857136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199487232).

144857136 is an abundant number, since it is smaller than the sum of its proper divisors (254117328).

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

144857136 is a wasteful number, since it uses less digits than its factorization.

144857136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1252 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 144857136 is about 12035.6610121754. The cubic root of 144857136 is about 525.1861906492.

The spelling of 144857136 in words is "one hundred forty-four million, eight hundred fifty-seven thousand, one hundred thirty-six".