105163431 has 4 divisors (see below), whose sum is σ = 140217912. Its totient is φ = 70108952.

The previous prime is 105163397. The next prime is 105163463. The reversal of 105163431 is 134361501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134361501 = 3 ⋅44787167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105163431 is a prime.

It is a super-2 number, since 2×105163431² = 22118694439383522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105163481) 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, 17527236 + ... + 17527241.

It is an arithmetic number, because the mean of its divisors is an integer number (35054478).

Almost surely, 2^105163431 is an apocalyptic number.

105163431 is a deficient number, since it is larger than the sum of its proper divisors (35054481).

105163431 is an equidigital number, since it uses as much as digits as its factorization.

105163431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35054480.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 105163431 is about 10254.9222815193. The cubic root of 105163431 is about 472.0140385918.

The spelling of 105163431 in words is "one hundred five million, one hundred sixty-three thousand, four hundred thirty-one".