105020671 has 6 divisors (see below), whose sum is σ = 122166960. Its totient is φ = 90017676.

The previous prime is 105020633. The next prime is 105020683. The reversal of 105020671 is 176020501.

It is a de Polignac number, because none of the positive numbers 2^k-105020671 is a prime.

It is a super-2 number, since 2×105020671² = 22058682674580482, 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 (105020471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1071591 + ... + 1071688.

It is an arithmetic number, because the mean of its divisors is an integer number (20361160).

Almost surely, 2^105020671 is an apocalyptic number.

105020671 is a deficient number, since it is larger than the sum of its proper divisors (17146289).

105020671 is an equidigital number, since it uses as much as digits as its factorization.

105020671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143293 (or 2143286 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 105020671 is about 10247.9593578429. The cubic root of 105020671 is about 471.8003545566.

The spelling of 105020671 in words is "one hundred five million, twenty thousand, six hundred seventy-one".