12500043 has 16 divisors (see below), whose sum is σ = 18021120. Its totient is φ = 7680096.

The previous prime is 12500029. The next prime is 12500069. The reversal of 12500043 is 34000521.

It is not a de Polignac number, because 12500043 - 2¹³ = 12491851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12499995 and 12500031.

It is not an unprimeable number, because it can be changed into a prime (12500003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855 + ... + 5072.

It is an arithmetic number, because the mean of its divisors is an integer number (1126320).

Almost surely, 2^12500043 is an apocalyptic number.

12500043 is a deficient number, since it is larger than the sum of its proper divisors (5521077).

12500043 is a wasteful number, since it uses less digits than its factorization.

12500043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5986.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 12500043 is about 3535.5399870458. The cubic root of 12500043 is about 232.0797077981.

Adding to 12500043 its reverse (34000521), we get a palindrome (46500564).

The spelling of 12500043 in words is "twelve million, five hundred thousand, forty-three".