145316243 has 2 divisors, whose sum is σ = 145316244. Its totient is φ = 145316242.

The previous prime is 145316191. The next prime is 145316257. The reversal of 145316243 is 342613541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145316243 - 2²⁴ = 128539027 is a prime.

It is a super-2 number, since 2×145316243² = 42233620959270098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145316443) 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, 72658121 + 72658122.

It is an arithmetic number, because the mean of its divisors is an integer number (72658122).

Almost surely, 2^145316243 is an apocalyptic number.

145316243 is a deficient number, since it is larger than the sum of its proper divisors (1).

145316243 is an equidigital number, since it uses as much as digits as its factorization.

145316243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 145316243 is about 12054.7187026492. The cubic root of 145316243 is about 525.7404433443.

Adding to 145316243 its reverse (342613541), we get a palindrome (487929784).

The spelling of 145316243 in words is "one hundred forty-five million, three hundred sixteen thousand, two hundred forty-three".