1528888201 has 9 divisors (see below), whose sum is σ = 1556791509. Its totient is φ = 1501478400.

The previous prime is 1528888171. The next prime is 1528888213. The reversal of 1528888201 is 1028888251.

It is a happy number.

The square root of 1528888201 is 39101.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 28100601 + 1500787600 = 5301^2 + 38740^2 .

It is not a de Polignac number, because 1528888201 - 2¹³ = 1528880009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1528888261) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2384841 + ... + 2385481.

Almost surely, 2^1528888201 is an apocalyptic number.

1528888201 is the 39101-st square number.

1528888201 is the 19551-st centered octagonal number.

It is an amenable number.

1528888201 is a deficient number, since it is larger than the sum of its proper divisors (27903308).

1528888201 is an frugal number, since it uses more digits than its factorization.

1528888201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 43.

The cubic root of 1528888201 is about 1152.0161735870.

The spelling of 1528888201 in words is "one billion, five hundred twenty-eight million, eight hundred eighty-eight thousand, two hundred one".