101045543 has 4 divisors (see below), whose sum is σ = 101107968. Its totient is φ = 100983120.

The previous prime is 101045533. The next prime is 101045561. The reversal of 101045543 is 345540101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345540101 = 113 ⋅3057877.

It is a cyclic number.

It is not a de Polignac number, because 101045543 - 2⁶ = 101045479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101045513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28718 + ... + 32043.

It is an arithmetic number, because the mean of its divisors is an integer number (25276992).

Almost surely, 2^101045543 is an apocalyptic number.

101045543 is a deficient number, since it is larger than the sum of its proper divisors (62425).

101045543 is an equidigital number, since it uses as much as digits as its factorization.

101045543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62424.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 101045543 is about 10052.1412146866. The cubic root of 101045543 is about 465.7709383424.

Adding to 101045543 its reverse (345540101), we get a palindrome (446585644).

The spelling of 101045543 in words is "one hundred one million, forty-five thousand, five hundred forty-three".