144072855 has 12 divisors (see below), whose sum is σ = 249726360. Its totient is φ = 76838832.

The previous prime is 144072829. The next prime is 144072871. The reversal of 144072855 is 558270441.

It is not a de Polignac number, because 144072855 - 2⁶ = 144072791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1600765 + ... + 1600854.

It is an arithmetic number, because the mean of its divisors is an integer number (20810530).

Almost surely, 2^144072855 is an apocalyptic number.

144072855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144072855 is a deficient number, since it is larger than the sum of its proper divisors (105653505).

144072855 is a wasteful number, since it uses less digits than its factorization.

144072855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201630 (or 3201627 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 144072855 is about 12003.0352411380. The cubic root of 144072855 is about 524.2366593617.

The spelling of 144072855 in words is "one hundred forty-four million, seventy-two thousand, eight hundred fifty-five".