123489397 has 2 divisors, whose sum is σ = 123489398. Its totient is φ = 123489396.

The previous prime is 123489371. The next prime is 123489427. The reversal of 123489397 is 793984321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116445681 + 7043716 = 10791^2 + 2654^2 .

It is a cyclic number.

It is not a de Polignac number, because 123489397 - 2¹⁵ = 123456629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123489307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61744698 + 61744699.

It is an arithmetic number, because the mean of its divisors is an integer number (61744699).

Almost surely, 2^123489397 is an apocalyptic number.

It is an amenable number.

123489397 is a deficient number, since it is larger than the sum of its proper divisors (1).

123489397 is an equidigital number, since it uses as much as digits as its factorization.

123489397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 123489397 is about 11112.5783236835. The cubic root of 123489397 is about 497.9776942532.

The spelling of 123489397 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, three hundred ninety-seven".