145224343 has 4 divisors (see below), whose sum is σ = 158426568. Its totient is φ = 132022120.

The previous prime is 145224341. The next prime is 145224349. The reversal of 145224343 is 343422541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145224343 - 2¹ = 145224341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145224341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6601096 + ... + 6601117.

It is an arithmetic number, because the mean of its divisors is an integer number (39606642).

Almost surely, 2^145224343 is an apocalyptic number.

145224343 is a deficient number, since it is larger than the sum of its proper divisors (13202225).

145224343 is a wasteful number, since it uses less digits than its factorization.

145224343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13202224.

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

The square root of 145224343 is about 12050.9063144645. The cubic root of 145224343 is about 525.6295914660.

Adding to 145224343 its reverse (343422541), we get a palindrome (488646884).

The spelling of 145224343 in words is "one hundred forty-five million, two hundred twenty-four thousand, three hundred forty-three".