1058261909 has 2 divisors, whose sum is σ = 1058261910. Its totient is φ = 1058261908.

The previous prime is 1058261839. The next prime is 1058261927. The reversal of 1058261909 is 9091628501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1058200900 + 61009 = 32530^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 1058261909 - 2²⁴ = 1041484693 is a prime.

It is a super-2 number, since 2×1058261909² = 2239836536080648562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1058261929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529130954 + 529130955.

It is an arithmetic number, because the mean of its divisors is an integer number (529130955).

Almost surely, 2^1058261909 is an apocalyptic number.

It is an amenable number.

1058261909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1058261909 is an equidigital number, since it uses as much as digits as its factorization.

1058261909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 1058261909 is about 32530.9377208835. The cubic root of 1058261909 is about 1019.0552282798.

The spelling of 1058261909 in words is "one billion, fifty-eight million, two hundred sixty-one thousand, nine hundred nine".