105157243 has 2 divisors, whose sum is σ = 105157244. Its totient is φ = 105157242.

The previous prime is 105157193. The next prime is 105157249. The reversal of 105157243 is 342751501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105157243 - 2⁹ = 105156731 is a prime.

It is a super-2 number, since 2×105157243² = 22116091510722098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105157249) 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 as a sum of consecutive naturals, namely, 52578621 + 52578622.

It is an arithmetic number, because the mean of its divisors is an integer number (52578622).

Almost surely, 2^105157243 is an apocalyptic number.

105157243 is a deficient number, since it is larger than the sum of its proper divisors (1).

105157243 is an equidigital number, since it uses as much as digits as its factorization.

105157243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 105157243 is about 10254.6205683097. The cubic root of 105157243 is about 472.0047803667.

The spelling of 105157243 in words is "one hundred five million, one hundred fifty-seven thousand, two hundred forty-three".