105931291 has 2 divisors, whose sum is σ = 105931292. Its totient is φ = 105931290.

The previous prime is 105931237. The next prime is 105931303. The reversal of 105931291 is 192139501.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (192139501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105931291 - 2¹³ = 105923099 is a prime.

It is a super-2 number, since 2×105931291² = 22442876825853362, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 105931291 parts by 14555 straight cuts.

It is not a weakly prime, because it can be changed into another prime (105931201) 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 as a sum of consecutive naturals, namely, 52965645 + 52965646.

It is an arithmetic number, because the mean of its divisors is an integer number (52965646).

Almost surely, 2^105931291 is an apocalyptic number.

105931291 is a deficient number, since it is larger than the sum of its proper divisors (1).

105931291 is an equidigital number, since it uses as much as digits as its factorization.

105931291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 105931291 is about 10292.2927960683. The cubic root of 105931291 is about 473.1600710938.

The spelling of 105931291 in words is "one hundred five million, nine hundred thirty-one thousand, two hundred ninety-one".