123028567 has 2 divisors, whose sum is σ = 123028568. Its totient is φ = 123028566.

The previous prime is 123028561. The next prime is 123028597. The reversal of 123028567 is 765820321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123028567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123028561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61514283 + 61514284.

It is an arithmetic number, because the mean of its divisors is an integer number (61514284).

Almost surely, 2^123028567 is an apocalyptic number.

123028567 is a deficient number, since it is larger than the sum of its proper divisors (1).

123028567 is an equidigital number, since it uses as much as digits as its factorization.

123028567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 123028567 is about 11091.8243314614. The cubic root of 123028567 is about 497.3574814615.

Adding to 123028567 its reverse (765820321), we get a palindrome (888848888).

The spelling of 123028567 in words is "one hundred twenty-three million, twenty-eight thousand, five hundred sixty-seven".