145000244 has 24 divisors (see below), whose sum is σ = 257833800. Its totient is φ = 71343104.

The previous prime is 145000243. The next prime is 145000249. The reversal of 145000244 is 442000541.

It can be written as a sum of positive squares in 4 ways, for example, as 22676644 + 122323600 = 4762^2 + 11060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145000243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66272 + ... + 68424.

It is an arithmetic number, because the mean of its divisors is an integer number (10743075).

Almost surely, 2^145000244 is an apocalyptic number.

It is an amenable number.

145000244 is a deficient number, since it is larger than the sum of its proper divisors (112833556).

145000244 is a wasteful number, since it uses less digits than its factorization.

145000244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 145000244 is about 12041.6047103366. The cubic root of 145000244 is about 525.3590819331.

Adding to 145000244 its reverse (442000541), we get a palindrome (587000785).

The spelling of 145000244 in words is "one hundred forty-five million, two hundred forty-four", and thus it is an aban number.