1532543 has 2 divisors, whose sum is σ = 1532544. Its totient is φ = 1532542.

The previous prime is 1532507. The next prime is 1532551. The reversal of 1532543 is 3452351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1532543 - 2⁸ = 1532287 is a prime.

It is an Ulam number.

It is equal to p₁₁₆₄₃₈ and since 1532543 and 116438 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1532593) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766271 + 766272.

It is an arithmetic number, because the mean of its divisors is an integer number (766272).

2^1532543 is an apocalyptic number.

1532543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1532543 is an equidigital number, since it uses as much as digits as its factorization.

1532543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 23.

The square root of 1532543 is about 1237.9592077286. The cubic root of 1532543 is about 115.2933405912.

Adding to 1532543 its reverse (3452351), we get a palindrome (4984894).

The spelling of 1532543 in words is "one million, five hundred thirty-two thousand, five hundred forty-three".