145882241 has 2 divisors, whose sum is σ = 145882242. Its totient is φ = 145882240.

The previous prime is 145882237. The next prime is 145882259. The reversal of 145882241 is 142288541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109641841 + 36240400 = 10471^2 + 6020^2 .

It is an emirp because it is prime and its reverse (142288541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145882241 - 2² = 145882237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (145882271) 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, 72941120 + 72941121.

It is an arithmetic number, because the mean of its divisors is an integer number (72941121).

Almost surely, 2^145882241 is an apocalyptic number.

It is an amenable number.

145882241 is a deficient number, since it is larger than the sum of its proper divisors (1).

145882241 is an equidigital number, since it uses as much as digits as its factorization.

145882241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 35.

The square root of 145882241 is about 12078.1720885240. The cubic root of 145882241 is about 526.4221348299.

The spelling of 145882241 in words is "one hundred forty-five million, eight hundred eighty-two thousand, two hundred forty-one".