145225232 has 20 divisors (see below), whose sum is σ = 281606976. Its totient is φ = 72552480.

The previous prime is 145225231. The next prime is 145225273. The reversal of 145225232 is 232522541.

It is not an unprimeable number, because it can be changed into a prime (145225231) 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 3 ways as a sum of consecutive naturals, for example, 21173 + ... + 27179.

Almost surely, 2^145225232 is an apocalyptic number.

It is an amenable number.

145225232 is a deficient number, since it is larger than the sum of its proper divisors (136381744).

145225232 is a wasteful number, since it uses less digits than its factorization.

145225232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526 (or 7520 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 145225232 is about 12050.9431996006. The cubic root of 145225232 is about 525.6306640220.

Adding to 145225232 its reverse (232522541), we get a palindrome (377747773).

The spelling of 145225232 in words is "one hundred forty-five million, two hundred twenty-five thousand, two hundred thirty-two".