145544452 has 12 divisors (see below), whose sum is σ = 256957596. Its totient is φ = 72128000.

The previous prime is 145544449. The next prime is 145544461. The reversal of 145544452 is 254445541.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 143185156 = 1536^2 + 11966^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160549 + ... + 161452.

It is an arithmetic number, because the mean of its divisors is an integer number (21413133).

Almost surely, 2^145544452 is an apocalyptic number.

It is an amenable number.

145544452 is a deficient number, since it is larger than the sum of its proper divisors (111413144).

145544452 is a wasteful number, since it uses less digits than its factorization.

145544452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322118 (or 322116 counting only the distinct ones).

The product of its digits is 64000, while the sum is 34.

The square root of 145544452 is about 12064.1805357844. The cubic root of 145544452 is about 526.0155122722.

Adding to 145544452 its reverse (254445541), we get a palindrome (399989993).

The spelling of 145544452 in words is "one hundred forty-five million, five hundred forty-four thousand, four hundred fifty-two".