145231052224 has 56 divisors (see below), whose sum is σ = 306831693168. Its totient is φ = 67966341120.

The previous prime is 145231052177. The next prime is 145231052261. The reversal of 145231052224 is 422250132541.

It is a happy number.

It is a congruent 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, 171814 + ... + 565669.

It is an arithmetic number, because the mean of its divisors is an integer number (5479137378).

Almost surely, 2^145231052224 is an apocalyptic number.

It is an amenable number.

145231052224 is an abundant number, since it is smaller than the sum of its proper divisors (161600640944).

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

145231052224 is a wasteful number, since it uses less digits than its factorization.

145231052224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737693 (or 737683 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 145231052224 its reverse (422250132541), we get a palindrome (567481184765).

The spelling of 145231052224 in words is "one hundred forty-five billion, two hundred thirty-one million, fifty-two thousand, two hundred twenty-four".