105380491 has 2 divisors, whose sum is σ = 105380492. Its totient is φ = 105380490.

The previous prime is 105380459. The next prime is 105380521. The reversal of 105380491 is 194083501.

It is a strong prime.

It is an emirp because it is prime and its reverse (194083501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105380491 - 2⁵ = 105380459 is a prime.

It is a super-2 number, since 2×105380491² = 22210095766802162, which contains 22 as substring.

It is a Chen prime.

It is the 10266-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (105380591) by changing a digit.

It is a nontrivial repunit in base 10265.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52690245 + 52690246.

It is an arithmetic number, because the mean of its divisors is an integer number (52690246).

Almost surely, 2^105380491 is an apocalyptic number.

105380491 is a deficient number, since it is larger than the sum of its proper divisors (1).

105380491 is an equidigital number, since it uses as much as digits as its factorization.

105380491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 105380491 is about 10265.5000365301. The cubic root of 105380491 is about 472.3385650830.

The spelling of 105380491 in words is "one hundred five million, three hundred eighty thousand, four hundred ninety-one".