1528532189 has 2 divisors, whose sum is σ = 1528532190. Its totient is φ = 1528532188.

The previous prime is 1528532147. The next prime is 1528532209. The reversal of 1528532189 is 9812358251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034136964 + 494395225 = 32158^2 + 22235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1528532189 - 2⁸ = 1528531933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1528532119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 764266094 + 764266095.

It is an arithmetic number, because the mean of its divisors is an integer number (764266095).

Almost surely, 2^1528532189 is an apocalyptic number.

It is an amenable number.

1528532189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528532189 is an equidigital number, since it uses as much as digits as its factorization.

1528532189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 44.

The square root of 1528532189 is about 39096.4472682621. The cubic root of 1528532189 is about 1151.9267483825.

It can be divided in two parts, 15285 and 32189, that added together give a palindrome (47474).

The spelling of 1528532189 in words is "one billion, five hundred twenty-eight million, five hundred thirty-two thousand, one hundred eighty-nine".