144686871 has 16 divisors (see below), whose sum is σ = 244972800. Its totient is φ = 82678104.

The previous prime is 144686851. The next prime is 144686879. The reversal of 144686871 is 178686441.

It is not a de Polignac number, because 144686871 - 2⁹ = 144686359 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144686879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382581 + ... + 382958.

It is an arithmetic number, because the mean of its divisors is an integer number (15310800).

Almost surely, 2^144686871 is an apocalyptic number.

144686871 is a deficient number, since it is larger than the sum of its proper divisors (100285929).

144686871 is an equidigital number, since it uses as much as digits as its factorization.

144686871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765555 (or 765549 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 144686871 is about 12028.5855776978. The cubic root of 144686871 is about 524.9803421211.

The spelling of 144686871 in words is "one hundred forty-four million, six hundred eighty-six thousand, eight hundred seventy-one".