105869431 has 2 divisors, whose sum is σ = 105869432. Its totient is φ = 105869430.

The previous prime is 105869429. The next prime is 105869479. The reversal of 105869431 is 134968501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105869431 - 2¹ = 105869429 is a prime.

It is a super-2 number, since 2×105869431² = 22416672840527522, which contains 22 as substring.

Together with 105869429, it forms a pair of twin primes.

It is equal to p_6079726 and since 105869431 and 6079726 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105869531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52934715 + 52934716.

It is an arithmetic number, because the mean of its divisors is an integer number (52934716).

Almost surely, 2^105869431 is an apocalyptic number.

105869431 is a deficient number, since it is larger than the sum of its proper divisors (1).

105869431 is an equidigital number, since it uses as much as digits as its factorization.

105869431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 105869431 is about 10289.2871959140. The cubic root of 105869431 is about 473.0679504338.

The spelling of 105869431 in words is "one hundred five million, eight hundred sixty-nine thousand, four hundred thirty-one".