105449957 has 2 divisors, whose sum is σ = 105449958. Its totient is φ = 105449956.

The previous prime is 105449951. The next prime is 105449969. The reversal of 105449957 is 759944501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87590881 + 17859076 = 9359^2 + 4226^2 .

It is a cyclic number.

It is not a de Polignac number, because 105449957 - 2¹⁰ = 105448933 is a prime.

It is a super-2 number, since 2×105449957² = 22239386862603698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105449951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52724978 + 52724979.

It is an arithmetic number, because the mean of its divisors is an integer number (52724979).

Almost surely, 2^105449957 is an apocalyptic number.

It is an amenable number.

105449957 is a deficient number, since it is larger than the sum of its proper divisors (1).

105449957 is an equidigital number, since it uses as much as digits as its factorization.

105449957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 105449957 is about 10268.8829480134. The cubic root of 105449957 is about 472.4423295888.

The spelling of 105449957 in words is "one hundred five million, four hundred forty-nine thousand, nine hundred fifty-seven".