152505231523 has 16 divisors (see below), whose sum is σ = 158540035680. Its totient is φ = 146523879936.

The previous prime is 152505231509. The next prime is 152505231583. The reversal of 152505231523 is 325132505251.

It is a de Polignac number, because none of the positive numbers 2^k-152505231523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152505231583) 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, 5096361 + ... + 5126197.

It is an arithmetic number, because the mean of its divisors is an integer number (9908752230).

Almost surely, 2^152505231523 is an apocalyptic number.

152505231523 is a deficient number, since it is larger than the sum of its proper divisors (6034804157).

152505231523 is a wasteful number, since it uses less digits than its factorization.

152505231523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30726.

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 152505231523 its reverse (325132505251), we get a palindrome (477637736774).

The spelling of 152505231523 in words is "one hundred fifty-two billion, five hundred five million, two hundred thirty-one thousand, five hundred twenty-three".