145300123 has 2 divisors, whose sum is σ = 145300124. Its totient is φ = 145300122.

The previous prime is 145300097. The next prime is 145300247. The reversal of 145300123 is 321003541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145300123 is a prime.

It is a super-2 number, since 2×145300123² = 42224251487630258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145300123.

It is not a weakly prime, because it can be changed into another prime (145300523) 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, 72650061 + 72650062.

It is an arithmetic number, because the mean of its divisors is an integer number (72650062).

Almost surely, 2^145300123 is an apocalyptic number.

145300123 is a deficient number, since it is larger than the sum of its proper divisors (1).

145300123 is an equidigital number, since it uses as much as digits as its factorization.

145300123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 145300123 is about 12054.0500662640. The cubic root of 145300123 is about 525.7210024129.

Adding to 145300123 its reverse (321003541), we get a palindrome (466303664).

The spelling of 145300123 in words is "one hundred forty-five million, three hundred thousand, one hundred twenty-three".