1040452543 has 16 divisors (see below), whose sum is σ = 1161998656. Its totient is φ = 925344000.

The previous prime is 1040452519. The next prime is 1040452549. The reversal of 1040452543 is 3452540401.

It is a cyclic number.

It is not a de Polignac number, because 1040452543 - 2²¹ = 1038355391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040452549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39043 + ... + 60043.

It is an arithmetic number, because the mean of its divisors is an integer number (72624916).

Almost surely, 2^1040452543 is an apocalyptic number.

1040452543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1040452543 is a deficient number, since it is larger than the sum of its proper divisors (121546113).

1040452543 is a wasteful number, since it uses less digits than its factorization.

1040452543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21154.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1040452543 is about 32256.0466114495. The cubic root of 1040452543 is about 1013.3063370602.

Adding to 1040452543 its reverse (3452540401), we get a palindrome (4492992944).

The spelling of 1040452543 in words is "one billion, forty million, four hundred fifty-two thousand, five hundred forty-three".