144018540 has 48 divisors (see below), whose sum is σ = 448059360. Its totient is φ = 38404800.

The previous prime is 144018517. The next prime is 144018551. The reversal of 144018540 is 45810441.

It is a happy number.

144018540 is a `hidden beast` number, since 1 + 440 + 185 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132811 + ... + 133890.

It is an arithmetic number, because the mean of its divisors is an integer number (9334570).

Almost surely, 2^144018540 is an apocalyptic number.

144018540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144018540 is an abundant number, since it is smaller than the sum of its proper divisors (304040820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144018540 is a wasteful number, since it uses less digits than its factorization.

144018540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266719 (or 266711 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 144018540 is about 12000.7724751368. The cubic root of 144018540 is about 524.1707725734.

Adding to 144018540 its reverse (45810441), we get a palindrome (189828981).

The spelling of 144018540 in words is "one hundred forty-four million, eighteen thousand, five hundred forty".