145530113 has 2 divisors, whose sum is σ = 145530114. Its totient is φ = 145530112.

The previous prime is 145530107. The next prime is 145530137. The reversal of 145530113 is 311035541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137757169 + 7772944 = 11737^2 + 2788^2 .

It is an emirp because it is prime and its reverse (311035541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145530113 - 2¹⁴ = 145513729 is a prime.

It is not a weakly prime, because it can be changed into another prime (145530163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72765056 + 72765057.

It is an arithmetic number, because the mean of its divisors is an integer number (72765057).

Almost surely, 2^145530113 is an apocalyptic number.

It is an amenable number.

145530113 is a deficient number, since it is larger than the sum of its proper divisors (1).

145530113 is an equidigital number, since it uses as much as digits as its factorization.

145530113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 145530113 is about 12063.5862412468. The cubic root of 145530113 is about 525.9982374030.

Adding to 145530113 its reverse (311035541), we get a palindrome (456565654).

The spelling of 145530113 in words is "one hundred forty-five million, five hundred thirty thousand, one hundred thirteen".