105871511 has 2 divisors, whose sum is σ = 105871512. Its totient is φ = 105871510.

The previous prime is 105871499. The next prime is 105871517. The reversal of 105871511 is 115178501.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (115178501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105871511 - 2¹⁸ = 105609367 is a prime.

It is a super-2 number, since 2×105871511² = 22417553682846242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105871517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52935755 + 52935756.

It is an arithmetic number, because the mean of its divisors is an integer number (52935756).

Almost surely, 2^105871511 is an apocalyptic number.

105871511 is a deficient number, since it is larger than the sum of its proper divisors (1).

105871511 is an equidigital number, since it uses as much as digits as its factorization.

105871511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 29.

The square root of 105871511 is about 10289.3882714183. The cubic root of 105871511 is about 473.0710485106.

The spelling of 105871511 in words is "one hundred five million, eight hundred seventy-one thousand, five hundred eleven".