106831057 has 2 divisors, whose sum is σ = 106831058. Its totient is φ = 106831056.

The previous prime is 106831037. The next prime is 106831163. The reversal of 106831057 is 750138601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105698961 + 1132096 = 10281^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 106831057 - 2¹⁹ = 106306769 is a prime.

It is a super-2 number, since 2×106831057² = 22825749479474498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106831007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53415528 + 53415529.

It is an arithmetic number, because the mean of its divisors is an integer number (53415529).

Almost surely, 2^106831057 is an apocalyptic number.

It is an amenable number.

106831057 is a deficient number, since it is larger than the sum of its proper divisors (1).

106831057 is an equidigital number, since it uses as much as digits as its factorization.

106831057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 106831057 is about 10335.9110387038. The cubic root of 106831057 is about 474.4959484117.

Adding to 106831057 its reverse (750138601), we get a palindrome (856969658).

The spelling of 106831057 in words is "one hundred six million, eight hundred thirty-one thousand, fifty-seven".