145170244 has 6 divisors (see below), whose sum is σ = 254047934. Its totient is φ = 72585120.

The previous prime is 145170211. The next prime is 145170257. The reversal of 145170244 is 442071541.

It can be written as a sum of positive squares in only one way, i.e., 98247744 + 46922500 = 9912^2 + 6850^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18146277 + ... + 18146284.

Almost surely, 2^145170244 is an apocalyptic number.

It is an amenable number.

145170244 is a deficient number, since it is larger than the sum of its proper divisors (108877690).

145170244 is a wasteful number, since it uses less digits than its factorization.

145170244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36292565 (or 36292563 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 145170244 is about 12048.6615024242. The cubic root of 145170244 is about 525.5643141476.

The spelling of 145170244 in words is "one hundred forty-five million, one hundred seventy thousand, two hundred forty-four".