12757122 has 32 divisors (see below), whose sum is σ = 32400000. Its totient is φ = 3644784.

The previous prime is 12757099. The next prime is 12757127. The reversal of 12757122 is 22175721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12757127) 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, 16497 + ... + 17252.

It is an arithmetic number, because the mean of its divisors is an integer number (1012500).

Almost surely, 2^12757122 is an apocalyptic number.

12757122 is an abundant number, since it is smaller than the sum of its proper divisors (19642878).

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

12757122 is a wasteful number, since it uses less digits than its factorization.

12757122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33767 (or 33761 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 12757122 is about 3571.7113545190. The cubic root of 12757122 is about 233.6599267854.

The spelling of 12757122 in words is "twelve million, seven hundred fifty-seven thousand, one hundred twenty-two".