123003539 has 2 divisors, whose sum is σ = 123003540. Its totient is φ = 123003538.

The previous prime is 123003509. The next prime is 123003571. The reversal of 123003539 is 935300321.

It is a weak prime.

It is an emirp because it is prime and its reverse (935300321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123003539 is a prime.

It is equal to p_7002863 and since 123003539 and 7002863 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123003509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61501769 + 61501770.

It is an arithmetic number, because the mean of its divisors is an integer number (61501770).

Almost surely, 2^123003539 is an apocalyptic number.

123003539 is a deficient number, since it is larger than the sum of its proper divisors (1).

123003539 is an equidigital number, since it uses as much as digits as its factorization.

123003539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 123003539 is about 11090.6960557036. The cubic root of 123003539 is about 497.3237529610.

The spelling of 123003539 in words is "one hundred twenty-three million, three thousand, five hundred thirty-nine".