124667789 has 2 divisors, whose sum is σ = 124667790. Its totient is φ = 124667788.

The previous prime is 124667773. The next prime is 124667813. The reversal of 124667789 is 987766421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 50879689 = 8590^2 + 7133^2 .

It is a cyclic number.

It is not a de Polignac number, because 124667789 - 2⁴ = 124667773 is a prime.

It is a super-2 number, since 2×124667789² = 31084115228297042, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124607789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62333894 + 62333895.

It is an arithmetic number, because the mean of its divisors is an integer number (62333895).

Almost surely, 2^124667789 is an apocalyptic number.

It is an amenable number.

124667789 is a deficient number, since it is larger than the sum of its proper divisors (1).

124667789 is an equidigital number, since it uses as much as digits as its factorization.

124667789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 50.

The square root of 124667789 is about 11165.4730755127. The cubic root of 124667789 is about 499.5566590137.

The spelling of 124667789 in words is "one hundred twenty-four million, six hundred sixty-seven thousand, seven hundred eighty-nine".