1271528 has 8 divisors (see below), whose sum is σ = 2384130. Its totient is φ = 635760.

The previous prime is 1271521. The next prime is 1271531. The reversal of 1271528 is 8251721.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 465124 = 898^2 + 682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1271497 and 1271506.

It is not an unprimeable number, because it can be changed into a prime (1271521) by changing a digit.

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 as a sum of consecutive naturals, namely, 79463 + ... + 79478.

2^1271528 is an apocalyptic number.

It is an amenable number.

1271528 is a deficient number, since it is larger than the sum of its proper divisors (1112602).

1271528 is a wasteful number, since it uses less digits than its factorization.

1271528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158947 (or 158943 counting only the distinct ones).

The product of its digits is 1120, while the sum is 26.

The square root of 1271528 is about 1127.6205035383. The cubic root of 1271528 is about 108.3366268558.

The spelling of 1271528 in words is "one million, two hundred seventy-one thousand, five hundred twenty-eight".