145247443 has 16 divisors (see below), whose sum is σ = 161449056. Its totient is φ = 129565440.

The previous prime is 145247411. The next prime is 145247449. The reversal of 145247443 is 344742541.

It is a cyclic number.

It is not a de Polignac number, because 145247443 - 2⁵ = 145247411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145247399 and 145247408.

It is not an unprimeable number, because it can be changed into a prime (145247449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222105 + ... + 222757.

It is an arithmetic number, because the mean of its divisors is an integer number (10090566).

Almost surely, 2^145247443 is an apocalyptic number.

145247443 is a deficient number, since it is larger than the sum of its proper divisors (16201613).

145247443 is a wasteful number, since it uses less digits than its factorization.

145247443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its digits is 53760, while the sum is 34.

The square root of 145247443 is about 12051.8647104919. The cubic root of 145247443 is about 525.6574596125.

Adding to 145247443 its reverse (344742541), we get a palindrome (489989984).

The spelling of 145247443 in words is "one hundred forty-five million, two hundred forty-seven thousand, four hundred forty-three".