1532545897 has 2 divisors, whose sum is σ = 1532545898. Its totient is φ = 1532545896.

The previous prime is 1532545879. The next prime is 1532545951. The reversal of 1532545897 is 7985452351.

Together with previous prime (1532545879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362791056 + 169754841 = 36916^2 + 13029^2 .

It is an emirp because it is prime and its reverse (7985452351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1532545897 - 2⁷ = 1532545769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1532545897.

It is not a weakly prime, because it can be changed into another prime (1532545837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766272948 + 766272949.

It is an arithmetic number, because the mean of its divisors is an integer number (766272949).

Almost surely, 2^1532545897 is an apocalyptic number.

It is an amenable number.

1532545897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532545897 is an equidigital number, since it uses as much as digits as its factorization.

1532545897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 49.

The square root of 1532545897 is about 39147.7444688707. The cubic root of 1532545897 is about 1152.9341323835.

The spelling of 1532545897 in words is "one billion, five hundred thirty-two million, five hundred forty-five thousand, eight hundred ninety-seven".