105149279 has 2 divisors, whose sum is σ = 105149280. Its totient is φ = 105149278.

The previous prime is 105149201. The next prime is 105149309. The reversal of 105149279 is 972941501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105149279 - 2¹⁶ = 105083743 is a prime.

It is a super-2 number, since 2×105149279² = 22112741748439682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105149479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52574639 + 52574640.

It is an arithmetic number, because the mean of its divisors is an integer number (52574640).

Almost surely, 2^105149279 is an apocalyptic number.

105149279 is a deficient number, since it is larger than the sum of its proper divisors (1).

105149279 is an equidigital number, since it uses as much as digits as its factorization.

105149279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 105149279 is about 10254.2322481988. The cubic root of 105149279 is about 471.9928644306.

The spelling of 105149279 in words is "one hundred five million, one hundred forty-nine thousand, two hundred seventy-nine".