12530479 has 24 divisors (see below), whose sum is σ = 15014160. Its totient is φ = 10356480.

The previous prime is 12530477. The next prime is 12530489. The reversal of 12530479 is 97403521.

It is not a de Polignac number, because 12530479 - 2¹ = 12530477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12530479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530471) 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, 212352 + ... + 212410.

It is an arithmetic number, because the mean of its divisors is an integer number (625590).

Almost surely, 2^12530479 is an apocalyptic number.

12530479 is a deficient number, since it is larger than the sum of its proper divisors (2483681).

12530479 is a wasteful number, since it uses less digits than its factorization.

12530479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 12530479 is about 3539.8416631256. The cubic root of 12530479 is about 232.2679165576.

The spelling of 12530479 in words is "twelve million, five hundred thirty thousand, four hundred seventy-nine".