12501272 has 24 divisors (see below), whose sum is σ = 27267660. Its totient is φ = 5357520.

The previous prime is 12501257. The next prime is 12501283. The reversal of 12501272 is 27210521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15554 + ... + 16337.

Almost surely, 2^12501272 is an apocalyptic number.

It is an amenable number.

12501272 is an abundant number, since it is smaller than the sum of its proper divisors (14766388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12501272 is a wasteful number, since it uses less digits than its factorization.

12501272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31911 (or 31900 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12501272 is about 3535.7137893218. The cubic root of 12501272 is about 232.0873135483.

Adding to 12501272 its reverse (27210521), we get a palindrome (39711793).

The spelling of 12501272 in words is "twelve million, five hundred one thousand, two hundred seventy-two".