1571228 has 6 divisors (see below), whose sum is σ = 2749656. Its totient is φ = 785612.

The previous prime is 1571221. The next prime is 1571233. The reversal of 1571228 is 8221751.

It is a super-3 number, since 3×1571228³ = 11636942388169333056, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1571197 and 1571206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1571221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196400 + ... + 196407.

It is an arithmetic number, because the mean of its divisors is an integer number (458276).

2^1571228 is an apocalyptic number.

It is an amenable number.

1571228 is a deficient number, since it is larger than the sum of its proper divisors (1178428).

1571228 is a wasteful number, since it uses less digits than its factorization.

1571228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392811 (or 392809 counting only the distinct ones).

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

The square root of 1571228 is about 1253.4863381784. The cubic root of 1571228 is about 116.2553826467.

Adding to 1571228 its reverse (8221751), we get a palindrome (9792979).

The spelling of 1571228 in words is "one million, five hundred seventy-one thousand, two hundred twenty-eight".