123737489 has 2 divisors, whose sum is σ = 123737490. Its totient is φ = 123737488.

The previous prime is 123737477. The next prime is 123737513. The reversal of 123737489 is 984737321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 25331089 = 9920^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 123737489 - 2⁸ = 123737233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123737429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61868744 + 61868745.

It is an arithmetic number, because the mean of its divisors is an integer number (61868745).

Almost surely, 2^123737489 is an apocalyptic number.

It is an amenable number.

123737489 is a deficient number, since it is larger than the sum of its proper divisors (1).

123737489 is an equidigital number, since it uses as much as digits as its factorization.

123737489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 123737489 is about 11123.7353887981. The cubic root of 123737489 is about 498.3109526631.

The spelling of 123737489 in words is "one hundred twenty-three million, seven hundred thirty-seven thousand, four hundred eighty-nine".