109061857 has 2 divisors, whose sum is σ = 109061858. Its totient is φ = 109061856.

The previous prime is 109061831. The next prime is 109061861. The reversal of 109061857 is 758160901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107308881 + 1752976 = 10359^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 109061857 - 2²³ = 100673249 is a prime.

It is not a weakly prime, because it can be changed into another prime (109061867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54530928 + 54530929.

It is an arithmetic number, because the mean of its divisors is an integer number (54530929).

Almost surely, 2^109061857 is an apocalyptic number.

It is an amenable number.

109061857 is a deficient number, since it is larger than the sum of its proper divisors (1).

109061857 is an equidigital number, since it uses as much as digits as its factorization.

109061857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 109061857 is about 10443.2685017671. The cubic root of 109061857 is about 477.7759624813.

The spelling of 109061857 in words is "one hundred nine million, sixty-one thousand, eight hundred fifty-seven".