144530141021540 has 48 divisors (see below), whose sum is σ = 314132211272880. Its totient is φ = 55791347996160.

The previous prime is 144530141021521. The next prime is 144530141021557. The reversal of 144530141021540 is 45120141035441.

It can be written as a sum of positive squares in 8 ways, for example, as 14127855759616 + 130402285261924 = 3758704^2 + 11419382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144530141021540.

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, 59498471 + ... + 61879950.

It is an arithmetic number, because the mean of its divisors is an integer number (6544421068185).

Almost surely, 2^{144530141021540} is an apocalyptic number.

144530141021540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144530141021540 is an abundant number, since it is smaller than the sum of its proper divisors (169602070251340).

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

144530141021540 is a wasteful number, since it uses less digits than its factorization.

144530141021540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121380512 (or 121380510 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 144530141021540 its reverse (45120141035441), we get a palindrome (189650282056981).

The spelling of 144530141021540 in words is "one hundred forty-four trillion, five hundred thirty billion, one hundred forty-one million, twenty-one thousand, five hundred forty".