124839089 has 2 divisors, whose sum is σ = 124839090. Its totient is φ = 124839088.

The previous prime is 124839079. The next prime is 124839133. The reversal of 124839089 is 980938421.

It is a happy number.

It is an a-pointer prime, because the next prime (124839133) can be obtained adding 124839089 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114490000 + 10349089 = 10700^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 124839089 - 2¹² = 124834993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124839059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62419544 + 62419545.

It is an arithmetic number, because the mean of its divisors is an integer number (62419545).

Almost surely, 2^124839089 is an apocalyptic number.

It is an amenable number.

124839089 is a deficient number, since it is larger than the sum of its proper divisors (1).

124839089 is an equidigital number, since it uses as much as digits as its factorization.

124839089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 124839089 is about 11173.1414114384. The cubic root of 124839089 is about 499.7853598724.

The spelling of 124839089 in words is "one hundred twenty-four million, eight hundred thirty-nine thousand, eighty-nine".