105278533 has 2 divisors, whose sum is σ = 105278534. Its totient is φ = 105278532.

The previous prime is 105278519. The next prime is 105278539. The reversal of 105278533 is 335872501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66863329 + 38415204 = 8177^2 + 6198^2 .

It is a cyclic number.

It is not a de Polignac number, because 105278533 - 2¹⁷ = 105147461 is a prime.

It is a super-2 number, since 2×105278533² = 22167139021264178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105278539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52639266 + 52639267.

It is an arithmetic number, because the mean of its divisors is an integer number (52639267).

Almost surely, 2^105278533 is an apocalyptic number.

It is an amenable number.

105278533 is a deficient number, since it is larger than the sum of its proper divisors (1).

105278533 is an equidigital number, since it uses as much as digits as its factorization.

105278533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 105278533 is about 10260.5327834377. The cubic root of 105278533 is about 472.1861831925.

The spelling of 105278533 in words is "one hundred five million, two hundred seventy-eight thousand, five hundred thirty-three".