145144443 has 8 divisors (see below), whose sum is σ = 194595856. Its totient is φ = 96228000.

The previous prime is 145144429. The next prime is 145144471. The reversal of 145144443 is 344441541.

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

It is not a de Polignac number, because 145144443 - 2⁴ = 145144427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145144443.

It is not an unprimeable number, because it can be changed into a prime (145144343) 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, 133108 + ... + 134193.

It is an arithmetic number, because the mean of its divisors is an integer number (24324482).

Almost surely, 2^145144443 is an apocalyptic number.

145144443 is a deficient number, since it is larger than the sum of its proper divisors (49451413).

145144443 is a wasteful number, since it uses less digits than its factorization.

145144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267485.

The product of its digits is 15360, while the sum is 30.

The square root of 145144443 is about 12047.5907550016. The cubic root of 145144443 is about 525.5331762507.

Adding to 145144443 its reverse (344441541), we get a palindrome (489585984).

The spelling of 145144443 in words is "one hundred forty-five million, one hundred forty-four thousand, four hundred forty-three".