105092921 has 2 divisors, whose sum is σ = 105092922. Its totient is φ = 105092920.

The previous prime is 105092887. The next prime is 105092941. The reversal of 105092921 is 129290501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83978896 + 21114025 = 9164^2 + 4595^2 .

It is an emirp because it is prime and its reverse (129290501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105092921 - 2¹⁸ = 104830777 is a prime.

It is a super-2 number, since 2×105092921² = 22089044088624482, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (105092941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52546460 + 52546461.

It is an arithmetic number, because the mean of its divisors is an integer number (52546461).

Almost surely, 2^105092921 is an apocalyptic number.

It is an amenable number.

105092921 is a deficient number, since it is larger than the sum of its proper divisors (1).

105092921 is an equidigital number, since it uses as much as digits as its factorization.

105092921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 105092921 is about 10251.4838438150. The cubic root of 105092921 is about 471.9085229813.

The spelling of 105092921 in words is "one hundred five million, ninety-two thousand, nine hundred twenty-one".