105902543 has 2 divisors, whose sum is σ = 105902544. Its totient is φ = 105902542.

The previous prime is 105902521. The next prime is 105902569. The reversal of 105902543 is 345209501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105902543 is a prime.

It is a super-2 number, since 2×105902543² = 22430697227733698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105902243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52951271 + 52951272.

It is an arithmetic number, because the mean of its divisors is an integer number (52951272).

Almost surely, 2^105902543 is an apocalyptic number.

105902543 is a deficient number, since it is larger than the sum of its proper divisors (1).

105902543 is an equidigital number, since it uses as much as digits as its factorization.

105902543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 105902543 is about 10290.8961223015. The cubic root of 105902543 is about 473.1172646159.

The spelling of 105902543 in words is "one hundred five million, nine hundred two thousand, five hundred forty-three".