1528132457 has 2 divisors, whose sum is σ = 1528132458. Its totient is φ = 1528132456.

The previous prime is 1528132439. The next prime is 1528132477. The reversal of 1528132457 is 7542318251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964972096 + 563160361 = 31064^2 + 23731^2 .

It is a cyclic number.

It is not a de Polignac number, because 1528132457 - 2¹⁰ = 1528131433 is a prime.

It is a super-2 number, since 2×1528132457² = 4670377612273713698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1528132457.

It is not a weakly prime, because it can be changed into another prime (1528132477) 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, 764066228 + 764066229.

It is an arithmetic number, because the mean of its divisors is an integer number (764066229).

Almost surely, 2^1528132457 is an apocalyptic number.

It is an amenable number.

1528132457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528132457 is an equidigital number, since it uses as much as digits as its factorization.

1528132457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The square root of 1528132457 is about 39091.3348070899. The cubic root of 1528132457 is about 1151.8263247798.

The spelling of 1528132457 in words is "one billion, five hundred twenty-eight million, one hundred thirty-two thousand, four hundred fifty-seven".