1055106109 has 2 divisors, whose sum is σ = 1055106110. Its totient is φ = 1055106108.

The previous prime is 1055106061. The next prime is 1055106113. The reversal of 1055106109 is 9016015501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 830016100 + 225090009 = 28810^2 + 15003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055106109 - 2⁷ = 1055105981 is a prime.

It is a super-2 number, since 2×1055106109² = 2226497802498239762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055106709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527553054 + 527553055.

It is an arithmetic number, because the mean of its divisors is an integer number (527553055).

Almost surely, 2^1055106109 is an apocalyptic number.

It is an amenable number.

1055106109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055106109 is an equidigital number, since it uses as much as digits as its factorization.

1055106109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 1055106109 is about 32482.3969097110. The cubic root of 1055106109 is about 1018.0412585900.

The spelling of 1055106109 in words is "one billion, fifty-five million, one hundred six thousand, one hundred nine".