105902449 has 2 divisors, whose sum is σ = 105902450. Its totient is φ = 105902448.

The previous prime is 105902443. The next prime is 105902521. The reversal of 105902449 is 944209501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92448225 + 13454224 = 9615^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 105902449 - 2⁹ = 105901937 is a prime.

It is a super-2 number, since 2×105902449² = 22430657408395202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105902443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52951224 + 52951225.

It is an arithmetic number, because the mean of its divisors is an integer number (52951225).

Almost surely, 2^105902449 is an apocalyptic number.

It is an amenable number.

105902449 is a deficient number, since it is larger than the sum of its proper divisors (1).

105902449 is an equidigital number, since it uses as much as digits as its factorization.

105902449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 105902449 is about 10290.8915551569. The cubic root of 105902449 is about 473.1171246349.

The spelling of 105902449 in words is "one hundred five million, nine hundred two thousand, four hundred forty-nine".