123180469 has 2 divisors, whose sum is σ = 123180470. Its totient is φ = 123180468.

The previous prime is 123180443. The next prime is 123180493. The reversal of 123180469 is 964081321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109453444 + 13727025 = 10462^2 + 3705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123180469 is a prime.

It is a super-2 number, since 2×123180469² = 30346855886119922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123180269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61590234 + 61590235.

It is an arithmetic number, because the mean of its divisors is an integer number (61590235).

Almost surely, 2^123180469 is an apocalyptic number.

It is an amenable number.

123180469 is a deficient number, since it is larger than the sum of its proper divisors (1).

123180469 is an equidigital number, since it uses as much as digits as its factorization.

123180469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 123180469 is about 11098.6696950581. The cubic root of 123180469 is about 497.5620911872.

The spelling of 123180469 in words is "one hundred twenty-three million, one hundred eighty thousand, four hundred sixty-nine".