1543252145 has 16 divisors (see below), whose sum is σ = 1891725840. Its totient is φ = 1208173824.

The previous prime is 1543252121. The next prime is 1543252159. The reversal of 1543252145 is 5412523451.

It can be written as a sum of positive squares in 8 ways, for example, as 63234304 + 1480017841 = 7952^2 + 38471^2 .

It is a cyclic number.

It is not a de Polignac number, because 1543252145 - 2¹⁶ = 1543186609 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 97871 + ... + 112539.

It is an arithmetic number, because the mean of its divisors is an integer number (118232865).

Almost surely, 2^1543252145 is an apocalyptic number.

It is an amenable number.

1543252145 is a deficient number, since it is larger than the sum of its proper divisors (348473695).

1543252145 is a wasteful number, since it uses less digits than its factorization.

1543252145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15124.

The product of its digits is 24000, while the sum is 32.

The square root of 1543252145 is about 39284.2480518592. The cubic root of 1543252145 is about 1155.6126744534.

Adding to 1543252145 its reverse (5412523451), we get a palindrome (6955775596).

The spelling of 1543252145 in words is "one billion, five hundred forty-three million, two hundred fifty-two thousand, one hundred forty-five".