12523069 has 6 divisors (see below), whose sum is σ = 13560666. Its totient is φ = 11559600.

The previous prime is 12522973. The next prime is 12523073. The reversal of 12523069 is 96032521.

12523069 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5625 + 12517444 = 75^2 + 3538^2 .

It is not a de Polignac number, because 12523069 - 2⁷ = 12522941 is a prime.

It is a super-2 number, since 2×12523069² = 313654514357522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36882 + ... + 37219.

It is an arithmetic number, because the mean of its divisors is an integer number (2260111).

Almost surely, 2^12523069 is an apocalyptic number.

It is an amenable number.

12523069 is a deficient number, since it is larger than the sum of its proper divisors (1037597).

12523069 is an equidigital number, since it uses as much as digits as its factorization.

12523069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74127 (or 74114 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 12523069 is about 3538.7948513583. The cubic root of 12523069 is about 232.2221230266. Note that the first 3 decimals are identical.

The spelling of 12523069 in words is "twelve million, five hundred twenty-three thousand, sixty-nine".