145444203 has 24 divisors (see below), whose sum is σ = 222513408. Its totient is φ = 91354032.

The previous prime is 145444153. The next prime is 145444207. The reversal of 145444203 is 302444541.

It is a happy number.

145444203 is a `hidden beast` number, since 1 + 454 + 4 + 4 + 203 = 666.

It is not a de Polignac number, because 145444203 - 2⁹ = 145443691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145444207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8626 + ... + 19112.

It is an arithmetic number, because the mean of its divisors is an integer number (9271392).

Almost surely, 2^145444203 is an apocalyptic number.

145444203 is a deficient number, since it is larger than the sum of its proper divisors (77069205).

145444203 is a wasteful number, since it uses less digits than its factorization.

145444203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10583 (or 10580 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 145444203 is about 12060.0249999741. The cubic root of 145444203 is about 525.8947138033.

Adding to 145444203 its reverse (302444541), we get a palindrome (447888744).

The spelling of 145444203 in words is "one hundred forty-five million, four hundred forty-four thousand, two hundred three".