12537122 has 16 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 5766672.

The previous prime is 12537121. The next prime is 12537149. The reversal of 12537122 is 22173521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12537121) 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 7 ways as a sum of consecutive naturals, for example, 9329 + ... + 10587.

It is an arithmetic number, because the mean of its divisors is an integer number (1270080).

Almost surely, 2^12537122 is an apocalyptic number.

12537122 is a deficient number, since it is larger than the sum of its proper divisors (7784158).

12537122 is a wasteful number, since it uses less digits than its factorization.

12537122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657.

The product of its digits is 840, while the sum is 23.

The square root of 12537122 is about 3540.7798576020. The cubic root of 12537122 is about 232.3089547117.

The spelling of 12537122 in words is "twelve million, five hundred thirty-seven thousand, one hundred twenty-two".