1271124 has 72 divisors (see below), whose sum is σ = 3564288. Its totient is φ = 380160.

The previous prime is 1271117. The next prime is 1271129. The reversal of 1271124 is 4211721.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1271097 and 1271106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18939 + ... + 19005.

It is an arithmetic number, because the mean of its divisors is an integer number (49504).

2^1271124 is an apocalyptic number.

1271124 is the 603-rd nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782144).

1271124 is an abundant number, since it is smaller than the sum of its proper divisors (2293164).

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

1271124 is a wasteful number, since it uses less digits than its factorization.

1271124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 120 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1271124 is about 1127.4413510245. The cubic root of 1271124 is about 108.3251517819.

Adding to 1271124 its reverse (4211721), we get a palindrome (5482845).

The spelling of 1271124 in words is "one million, two hundred seventy-one thousand, one hundred twenty-four".