144671587 has 8 divisors (see below), whose sum is σ = 151405056. Its totient is φ = 137975112.

The previous prime is 144671563. The next prime is 144671627. The reversal of 144671587 is 785176441.

144671587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144671587 - 2¹⁹ = 144147299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144671507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083 + ... + 17044.

It is an arithmetic number, because the mean of its divisors is an integer number (18925632).

Almost surely, 2^144671587 is an apocalyptic number.

144671587 is a deficient number, since it is larger than the sum of its proper divisors (6733469).

144671587 is a wasteful number, since it uses less digits than its factorization.

144671587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18497.

The product of its digits is 188160, while the sum is 43.

The square root of 144671587 is about 12027.9502410012. The cubic root of 144671587 is about 524.9618560345.

The spelling of 144671587 in words is "one hundred forty-four million, six hundred seventy-one thousand, five hundred eighty-seven".