144102252520 has 32 divisors (see below), whose sum is σ = 341294810400. Its totient is φ = 54607169088.

The previous prime is 144102252509. The next prime is 144102252551. The reversal of 144102252520 is 25252201441.

It is a happy number.

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, 94803354 + ... + 94804873.

It is an arithmetic number, because the mean of its divisors is an integer number (10665462825).

Almost surely, 2^144102252520 is an apocalyptic number.

144102252520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144102252520 is an abundant number, since it is smaller than the sum of its proper divisors (197192557880).

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

144102252520 is a wasteful number, since it uses less digits than its factorization.

144102252520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189608257 (or 189608253 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 144102252520 its reverse (25252201441), we get a palindrome (169354453961).

The spelling of 144102252520 in words is "one hundred forty-four billion, one hundred two million, two hundred fifty-two thousand, five hundred twenty".