144120087 has 16 divisors (see below), whose sum is σ = 215405280. Its totient is φ = 95227776.

The previous prime is 144120079. The next prime is 144120089. The reversal of 144120087 is 780021441.

It is not a de Polignac number, because 144120087 - 2³ = 144120079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 144120087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144120089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20568 + ... + 26669.

It is an arithmetic number, because the mean of its divisors is an integer number (13462830).

Almost surely, 2^144120087 is an apocalyptic number.

144120087 is a deficient number, since it is larger than the sum of its proper divisors (71285193).

144120087 is a wasteful number, since it uses less digits than its factorization.

144120087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47359 (or 47353 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 144120087 is about 12005.0025822571. The cubic root of 144120087 is about 524.2939406601.

It can be divided in two parts, 1441 and 20087, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 144120087 in words is "one hundred forty-four million, one hundred twenty thousand, eighty-seven".