10543403 has 8 divisors (see below), whose sum is σ = 11424000. Its totient is φ = 9730344.

The previous prime is 10543399. The next prime is 10543411. The reversal of 10543403 is 30434501.

It is not a de Polignac number, because 10543403 - 2² = 10543399 is a prime.

It is a super-2 number, since 2×10543403² = 222326693640818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10543433) 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, 203 + ... + 4596.

It is an arithmetic number, because the mean of its divisors is an integer number (1428000).

Almost surely, 2^10543403 is an apocalyptic number.

10543403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10543403 is a deficient number, since it is larger than the sum of its proper divisors (880597).

10543403 is an frugal number, since it uses more digits than its factorization.

10543403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 10543403 is about 3247.0606708222. The cubic root of 10543403 is about 219.2772632754.

Adding to 10543403 its reverse (30434501), we get a palindrome (40977904).

The spelling of 10543403 in words is "ten million, five hundred forty-three thousand, four hundred three".