145424343 has 4 divisors (see below), whose sum is σ = 193899128. Its totient is φ = 96949560.

The previous prime is 145424327. The next prime is 145424369. The reversal of 145424343 is 343424541.

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

It is not a de Polignac number, because 145424343 - 2⁴ = 145424327 is a prime.

It is a super-2 number, since 2×145424343² = 42296479073963298, which contains 22 as substring.

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 145424343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145420343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24237388 + ... + 24237393.

It is an arithmetic number, because the mean of its divisors is an integer number (48474782).

Almost surely, 2^145424343 is an apocalyptic number.

145424343 is a deficient number, since it is larger than the sum of its proper divisors (48474785).

145424343 is an equidigital number, since it uses as much as digits as its factorization.

145424343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48474784.

The product of its digits is 23040, while the sum is 30.

The square root of 145424343 is about 12059.2015904868. The cubic root of 145424343 is about 525.8707762286.

Adding to 145424343 its reverse (343424541), we get a palindrome (488848884).

The spelling of 145424343 in words is "one hundred forty-five million, four hundred twenty-four thousand, three hundred forty-three".