106257287 has 2 divisors, whose sum is σ = 106257288. Its totient is φ = 106257286.

The previous prime is 106257227. The next prime is 106257301. The reversal of 106257287 is 782752601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106257287 - 2⁶ = 106257223 is a prime.

It is a super-2 number, since 2×106257287² = 22581222081200738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106257287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106257227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53128643 + 53128644.

It is an arithmetic number, because the mean of its divisors is an integer number (53128644).

Almost surely, 2^106257287 is an apocalyptic number.

106257287 is a deficient number, since it is larger than the sum of its proper divisors (1).

106257287 is an equidigital number, since it uses as much as digits as its factorization.

106257287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 106257287 is about 10308.1175294037. The cubic root of 106257287 is about 473.6449461786.

The spelling of 106257287 in words is "one hundred six million, two hundred fifty-seven thousand, two hundred eighty-seven".