1572116 has 36 divisors (see below), whose sum is σ = 3452148. Its totient is φ = 620928.

The previous prime is 1572113. The next prime is 1572149. The reversal of 1572116 is 6112751.

It can be written as a sum of positive squares in 2 ways, for example, as 122500 + 1449616 = 350^2 + 1204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1572091 and 1572100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572113) 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 11 ways as a sum of consecutive naturals, for example, 2240 + ... + 2856.

It is an arithmetic number, because the mean of its divisors is an integer number (95893).

2^1572116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1572116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726074).

1572116 is an abundant number, since it is smaller than the sum of its proper divisors (1880032).

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

1572116 is a wasteful number, since it uses less digits than its factorization.

1572116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 639 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 1572116 is about 1253.8405002232. The cubic root of 1572116 is about 116.2772796041.

Adding to 1572116 its reverse (6112751), we get a palindrome (7684867).

The spelling of 1572116 in words is "one million, five hundred seventy-two thousand, one hundred sixteen".