145420343 has 2 divisors, whose sum is σ = 145420344. Its totient is φ = 145420342.

The previous prime is 145420337. The next prime is 145420369. The reversal of 145420343 is 343024541.

145420343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (145420369) can be obtained adding 145420343 to its sum of digits (26).

It is a weak prime.

It is an emirp because it is prime and its reverse (343024541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145420343 - 2¹⁴ = 145403959 is a prime.

It is a super-2 number, since 2×145420343² = 42294152316475298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145420313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72710171 + 72710172.

It is an arithmetic number, because the mean of its divisors is an integer number (72710172).

Almost surely, 2^145420343 is an apocalyptic number.

145420343 is a deficient number, since it is larger than the sum of its proper divisors (1).

145420343 is an equidigital number, since it uses as much as digits as its factorization.

145420343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 145420343 is about 12059.0357408874. The cubic root of 145420343 is about 525.8659547011.

Adding to 145420343 its reverse (343024541), we get a palindrome (488444884).

The spelling of 145420343 in words is "one hundred forty-five million, four hundred twenty thousand, three hundred forty-three".