12162501 has 16 divisors (see below), whose sum is σ = 19405120. Its totient is φ = 7484400.

The previous prime is 12162487. The next prime is 12162503. The reversal of 12162501 is 10526121.

12162501 is a `hidden beast` number, since 1 + 2 + 162 + 501 = 666.

It is not a de Polignac number, because 12162501 - 2⁷ = 12162373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16975 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (1212820).

Almost surely, 2^12162501 is an apocalyptic number.

It is an amenable number.

12162501 is a deficient number, since it is larger than the sum of its proper divisors (7242619).

12162501 is a wasteful number, since it uses less digits than its factorization.

12162501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34673 (or 34667 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 12162501 is about 3487.4777418645. The cubic root of 12162501 is about 229.9716474187.

Adding to 12162501 its reverse (10526121), we get a palindrome (22688622).

The spelling of 12162501 in words is "twelve million, one hundred sixty-two thousand, five hundred one".