1040355543 has 8 divisors (see below), whose sum is σ = 1400105088. Its totient is φ = 687088184.

The previous prime is 1040355509. The next prime is 1040355551. The reversal of 1040355543 is 3455530401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040355543 - 2¹² = 1040351447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040355543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040355143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620171 + ... + 1620812.

It is an arithmetic number, because the mean of its divisors is an integer number (175013136).

Almost surely, 2^1040355543 is an apocalyptic number.

1040355543 is a deficient number, since it is larger than the sum of its proper divisors (359749545).

1040355543 is a wasteful number, since it uses less digits than its factorization.

1040355543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241093.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1040355543 is about 32254.5429823459. The cubic root of 1040355543 is about 1013.2748463497.

Adding to 1040355543 its reverse (3455530401), we get a palindrome (4495885944).

The spelling of 1040355543 in words is "one billion, forty million, three hundred fifty-five thousand, five hundred forty-three".