105155143 has 4 divisors (see below), whose sum is σ = 105244920. Its totient is φ = 105065368.

The previous prime is 105155137. The next prime is 105155153. The reversal of 105155143 is 341551501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105155143 is a prime.

It is a super-2 number, since 2×105155143² = 22115208198700898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105155123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43108 + ... + 45481.

It is an arithmetic number, because the mean of its divisors is an integer number (26311230).

Almost surely, 2^105155143 is an apocalyptic number.

105155143 is a deficient number, since it is larger than the sum of its proper divisors (89777).

105155143 is an equidigital number, since it uses as much as digits as its factorization.

105155143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89776.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 105155143 is about 10254.5181749315. The cubic root of 105155143 is about 472.0016383525.

The spelling of 105155143 in words is "one hundred five million, one hundred fifty-five thousand, one hundred forty-three".