145231761328 has 60 divisors (see below), whose sum is σ = 314445197880. Its totient is φ = 64747243008.

The previous prime is 145231761289. The next prime is 145231761377. The reversal of 145231761328 is 823167132541.

It is a happy number.

145231761328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 641338 + ... + 837721.

It is an arithmetic number, because the mean of its divisors is an integer number (5240753298).

Almost surely, 2^145231761328 is an apocalyptic number.

It is an amenable number.

145231761328 is an abundant number, since it is smaller than the sum of its proper divisors (169213436552).

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

145231761328 is a wasteful number, since it uses less digits than its factorization.

145231761328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479122 (or 1479097 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

Adding to 145231761328 its reverse (823167132541), we get a palindrome (968398893869).

The spelling of 145231761328 in words is "one hundred forty-five billion, two hundred thirty-one million, seven hundred sixty-one thousand, three hundred twenty-eight".