123028537 has 2 divisors, whose sum is σ = 123028538. Its totient is φ = 123028536.

The previous prime is 123028531. The next prime is 123028561. The reversal of 123028537 is 735820321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98188281 + 24840256 = 9909^2 + 4984^2 .

It is an emirp because it is prime and its reverse (735820321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123028537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 123028499 and 123028508.

It is not a weakly prime, because it can be changed into another prime (123028531) 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, 61514268 + 61514269.

It is an arithmetic number, because the mean of its divisors is an integer number (61514269).

Almost surely, 2^123028537 is an apocalyptic number.

It is an amenable number.

123028537 is a deficient number, since it is larger than the sum of its proper divisors (1).

123028537 is an equidigital number, since it uses as much as digits as its factorization.

123028537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 123028537 is about 11091.8229791139. The cubic root of 123028537 is about 497.3574410353.

Adding to 123028537 its reverse (735820321), we get a palindrome (858848858).

The spelling of 123028537 in words is "one hundred twenty-three million, twenty-eight thousand, five hundred thirty-seven".