1106251609 has 2 divisors, whose sum is σ = 1106251610. Its totient is φ = 1106251608.

The previous prime is 1106251571. The next prime is 1106251633. The reversal of 1106251609 is 9061526011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 769896009 + 336355600 = 27747^2 + 18340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1106251609 - 2⁷ = 1106251481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1106251009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553125804 + 553125805.

It is an arithmetic number, because the mean of its divisors is an integer number (553125805).

Almost surely, 2^1106251609 is an apocalyptic number.

It is an amenable number.

1106251609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106251609 is an equidigital number, since it uses as much as digits as its factorization.

1106251609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1106251609 is about 33260.3609270856. The cubic root of 1106251609 is about 1034.2320016982.

The spelling of 1106251609 in words is "one billion, one hundred six million, two hundred fifty-one thousand, six hundred nine".