123072469 has 16 divisors (see below), whose sum is σ = 140806512. Its totient is φ = 106564608.

The previous prime is 123072463. The next prime is 123072473. The reversal of 123072469 is 964270321.

It can be written as a sum of positive squares in 8 ways, for example, as 4153444 + 118919025 = 2038^2 + 10905^2 .

It is not a de Polignac number, because 123072469 - 2⁹ = 123071957 is a prime.

It is a super-2 number, since 2×123072469² = 30293665251511922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123072463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81687 + ... + 83179.

It is an arithmetic number, because the mean of its divisors is an integer number (8800407).

Almost surely, 2^123072469 is an apocalyptic number.

It is an amenable number.

123072469 is a deficient number, since it is larger than the sum of its proper divisors (17734043).

123072469 is a wasteful number, since it uses less digits than its factorization.

123072469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 123072469 is about 11093.8031801542. The cubic root of 123072469 is about 497.4166340956.

The spelling of 123072469 in words is "one hundred twenty-three million, seventy-two thousand, four hundred sixty-nine".