145304443 has 8 divisors (see below), whose sum is σ = 146344176. Its totient is φ = 144268800.

The previous prime is 145304407. The next prime is 145304449. The reversal of 145304443 is 344403541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145304443 is a prime.

It is a super-2 number, since 2×145304443² = 42226762311080498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145304449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106083 + ... + 107443.

It is an arithmetic number, because the mean of its divisors is an integer number (18293022).

Almost surely, 2^145304443 is an apocalyptic number.

145304443 is a deficient number, since it is larger than the sum of its proper divisors (1039733).

145304443 is a wasteful number, since it uses less digits than its factorization.

145304443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 145304443 is about 12054.2292578165. The cubic root of 145304443 is about 525.7262125306.

Adding to 145304443 its reverse (344403541), we get a palindrome (489707984).

The spelling of 145304443 in words is "one hundred forty-five million, three hundred four thousand, four hundred forty-three".