145375613 has 2 divisors, whose sum is σ = 145375614. Its totient is φ = 145375612.

The previous prime is 145375597. The next prime is 145375621. The reversal of 145375613 is 316573541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80766169 + 64609444 = 8987^2 + 8038^2 .

It is a cyclic number.

It is not a de Polignac number, because 145375613 - 2⁴ = 145375597 is a prime.

It is a super-2 number, since 2×145375613² = 42268137710251538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145377613) 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, 72687806 + 72687807.

It is an arithmetic number, because the mean of its divisors is an integer number (72687807).

Almost surely, 2^145375613 is an apocalyptic number.

It is an amenable number.

145375613 is a deficient number, since it is larger than the sum of its proper divisors (1).

145375613 is an equidigital number, since it uses as much as digits as its factorization.

145375613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 145375613 is about 12057.1809723500. The cubic root of 145375613 is about 525.8120319468.

The spelling of 145375613 in words is "one hundred forty-five million, three hundred seventy-five thousand, six hundred thirteen".