1572245 has 16 divisors (see below), whose sum is σ = 2041200. Its totient is φ = 1158144.

The previous prime is 1572239. The next prime is 1572247. The reversal of 1572245 is 5422751.

It can be written as a sum of positive squares in 8 ways, for example, as 148996 + 1423249 = 386^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1572245 - 2⁸ = 1571989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572247) 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, 4331 + ... + 4679.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2^1572245 is an apocalyptic number.

It is an amenable number.

1572245 is a deficient number, since it is larger than the sum of its proper divisors (468955).

1572245 is a wasteful number, since it uses less digits than its factorization.

1572245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424.

The product of its digits is 2800, while the sum is 26.

The square root of 1572245 is about 1253.8919411177. The cubic root of 1572245 is about 116.2804598950.

Adding to 1572245 its reverse (5422751), we get a palindrome (6994996).

The spelling of 1572245 in words is "one million, five hundred seventy-two thousand, two hundred forty-five".