145202531224 has 16 divisors (see below), whose sum is σ = 274950339120. Its totient is φ = 71882440800.

The previous prime is 145202531219. The next prime is 145202531261. The reversal of 145202531224 is 422135202541.

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 3 ways as a sum of consecutive naturals, for example, 89852244 + ... + 89853859.

It is an arithmetic number, because the mean of its divisors is an integer number (17184396195).

Almost surely, 2^145202531224 is an apocalyptic number.

It is an amenable number.

145202531224 is a deficient number, since it is larger than the sum of its proper divisors (129747807896).

145202531224 is a wasteful number, since it uses less digits than its factorization.

145202531224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179706210 (or 179706206 counting only the distinct ones).

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

Adding to 145202531224 its reverse (422135202541), we get a palindrome (567337733765).

The spelling of 145202531224 in words is "one hundred forty-five billion, two hundred two million, five hundred thirty-one thousand, two hundred twenty-four".