145324241 has 2 divisors, whose sum is σ = 145324242. Its totient is φ = 145324240.

The previous prime is 145324237. The next prime is 145324243. The reversal of 145324241 is 142423541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134467216 + 10857025 = 11596^2 + 3295^2 .

It is a cyclic number.

It is not a de Polignac number, because 145324241 - 2² = 145324237 is a prime.

It is a super-2 number, since 2×145324241² = 42238270044452162, which contains 22 as substring.

Together with 145324243, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145324241.

It is not a weakly prime, because it can be changed into another prime (145324243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72662120 + 72662121.

It is an arithmetic number, because the mean of its divisors is an integer number (72662121).

Almost surely, 2^145324241 is an apocalyptic number.

It is an amenable number.

145324241 is a deficient number, since it is larger than the sum of its proper divisors (1).

145324241 is an equidigital number, since it uses as much as digits as its factorization.

145324241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 26.

The square root of 145324241 is about 12055.0504353984. The cubic root of 145324241 is about 525.7500885036.

Adding to 145324241 its reverse (142423541), we get a palindrome (287747782).

The spelling of 145324241 in words is "one hundred forty-five million, three hundred twenty-four thousand, two hundred forty-one".