1528181145 has 12 divisors (see below), whose sum is σ = 2648847396. Its totient is φ = 815029920.

The previous prime is 1528181063. The next prime is 1528181147. The reversal of 1528181145 is 5411818251.

1528181145 is a `hidden beast` number, since 1 + 528 + 18 + 114 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 458302464 + 1069878681 = 21408^2 + 32709^2 .

It is not a de Polignac number, because 1528181145 - 2¹⁴ = 1528164761 is a prime.

It is a super-2 number, since 2×1528181145² = 4670675223867022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1528181147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16979746 + ... + 16979835.

It is an arithmetic number, because the mean of its divisors is an integer number (220737283).

Almost surely, 2^1528181145 is an apocalyptic number.

1528181145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1528181145 is a deficient number, since it is larger than the sum of its proper divisors (1120666251).

1528181145 is a wasteful number, since it uses less digits than its factorization.

1528181145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33959592 (or 33959589 counting only the distinct ones).

The product of its digits is 12800, while the sum is 36.

The square root of 1528181145 is about 39091.9575488361. The cubic root of 1528181145 is about 1151.8385574725.

Adding to 1528181145 its reverse (5411818251), we get a palindrome (6939999396).

The spelling of 1528181145 in words is "one billion, five hundred twenty-eight million, one hundred eighty-one thousand, one hundred forty-five".