145446244 has 6 divisors (see below), whose sum is σ = 254530934. Its totient is φ = 72723120.

The previous prime is 145446239. The next prime is 145446283. The reversal of 145446244 is 442644541.

It can be written as a sum of positive squares in only one way, i.e., 119639844 + 25806400 = 10938^2 + 5080^2 .

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, 18180777 + ... + 18180784.

Almost surely, 2^145446244 is an apocalyptic number.

It is an amenable number.

145446244 is a deficient number, since it is larger than the sum of its proper divisors (109084690).

145446244 is a wasteful number, since it uses less digits than its factorization.

145446244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36361565 (or 36361563 counting only the distinct ones).

The product of its digits is 61440, while the sum is 34.

The square root of 145446244 is about 12060.1096180756. The cubic root of 145446244 is about 525.8971737297.

The spelling of 145446244 in words is "one hundred forty-five million, four hundred forty-six thousand, two hundred forty-four".