12523017 has 24 divisors (see below), whose sum is σ = 18828544. Its totient is φ = 7359264.

The previous prime is 12522973. The next prime is 12523073. The reversal of 12523017 is 71032521.

12523017 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12523017 - 2⁶ = 12522953 is a prime.

It is a super-3 number, since 3×12523017³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12522984 and 12523002.

It is not an unprimeable number, because it can be changed into a prime (12523097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20328 + ... + 20934.

Almost surely, 2^12523017 is an apocalyptic number.

It is an amenable number.

12523017 is a deficient number, since it is larger than the sum of its proper divisors (6305527).

12523017 is a wasteful number, since it uses less digits than its factorization.

12523017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12523017 is about 3538.7875042167. The cubic root of 12523017 is about 232.2218016046.

Adding to 12523017 its reverse (71032521), we get a palindrome (83555538).

The spelling of 12523017 in words is "twelve million, five hundred twenty-three thousand, seventeen".