145309559 has 2 divisors, whose sum is σ = 145309560. Its totient is φ = 145309558.

The previous prime is 145309537. The next prime is 145309573. The reversal of 145309559 is 955903541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145309559 is a prime.

It is a super-2 number, since 2×145309559² = 42229735873548962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145309529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72654779 + 72654780.

It is an arithmetic number, because the mean of its divisors is an integer number (72654780).

Almost surely, 2^145309559 is an apocalyptic number.

145309559 is a deficient number, since it is larger than the sum of its proper divisors (1).

145309559 is an equidigital number, since it uses as much as digits as its factorization.

145309559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 145309559 is about 12054.4414636266. The cubic root of 145309559 is about 525.7323825271.

The spelling of 145309559 in words is "one hundred forty-five million, three hundred nine thousand, five hundred fifty-nine".