144531261356 has 24 divisors (see below), whose sum is σ = 261138909696. Its totient is φ = 69947902080.

The previous prime is 144531261331. The next prime is 144531261361. The reversal of 144531261356 is 653162135441.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448811 + ... + 3490466.

It is an arithmetic number, because the mean of its divisors is an integer number (10880787904).

Almost surely, 2^144531261356 is an apocalyptic number.

It is an amenable number.

144531261356 is a deficient number, since it is larger than the sum of its proper divisors (116607648340).

144531261356 is a wasteful number, since it uses less digits than its factorization.

144531261356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939449 (or 6939447 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

Adding to 144531261356 its reverse (653162135441), we get a palindrome (797693396797).

The spelling of 144531261356 in words is "one hundred forty-four billion, five hundred thirty-one million, two hundred sixty-one thousand, three hundred fifty-six".