144143855 has 8 divisors (see below), whose sum is σ = 173749632. Its totient is φ = 114797088.

The previous prime is 144143849. The next prime is 144143911. The reversal of 144143855 is 558341441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144143855 - 2²⁴ = 127366639 is a prime.

It is a super-2 number, since 2×144143855² = 41554901868522050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63524 + ... + 65753.

It is an arithmetic number, because the mean of its divisors is an integer number (21718704).

Almost surely, 2^144143855 is an apocalyptic number.

144143855 is a deficient number, since it is larger than the sum of its proper divisors (29605777).

144143855 is a wasteful number, since it uses less digits than its factorization.

144143855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129505.

The product of its digits is 38400, while the sum is 35.

The square root of 144143855 is about 12005.9924620999. The cubic root of 144143855 is about 524.3227609161.

The spelling of 144143855 in words is "one hundred forty-four million, one hundred forty-three thousand, eight hundred fifty-five".