10020543 has 16 divisors (see below), whose sum is σ = 15146880. Its totient is φ = 5841504.

The previous prime is 10020509. The next prime is 10020547. The reversal of 10020543 is 34502001.

It is not a de Polignac number, because 10020543 - 2¹⁰ = 10019519 is a prime.

It is a super-2 number, since 2×10020543² = 200822564029698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020547) 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, 6021 + ... + 7502.

It is an arithmetic number, because the mean of its divisors is an integer number (946680).

Almost surely, 2^10020543 is an apocalyptic number.

10020543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10020543 is a deficient number, since it is larger than the sum of its proper divisors (5126337).

10020543 is a wasteful number, since it uses less digits than its factorization.

10020543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13558.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 10020543 is about 3165.5241272181. The cubic root of 10020543 is about 215.5908966018.

Adding to 10020543 its reverse (34502001), we get a palindrome (44522544).

The spelling of 10020543 in words is "ten million, twenty thousand, five hundred forty-three".