1056917105 has 4 divisors (see below), whose sum is σ = 1268300532. Its totient is φ = 845533680.

The previous prime is 1056917077. The next prime is 1056917119. The reversal of 1056917105 is 5017196501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 843786304 + 213130801 = 29048^2 + 14599^2 .

It is not a de Polignac number, because 1056917105 - 2⁶ = 1056917041 is a prime.

It is a super-2 number, since 2×1056917105² = 2234147533683162050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105691706 + ... + 105691715.

It is an arithmetic number, because the mean of its divisors is an integer number (317075133).

Almost surely, 2^1056917105 is an apocalyptic number.

It is an amenable number.

1056917105 is a deficient number, since it is larger than the sum of its proper divisors (211383427).

1056917105 is an equidigital number, since it uses as much as digits as its factorization.

1056917105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211383426.

The product of its (nonzero) digits is 9450, while the sum is 35.

The square root of 1056917105 is about 32510.2615338604. The cubic root of 1056917105 is about 1018.6233848188.

The spelling of 1056917105 in words is "one billion, fifty-six million, nine hundred seventeen thousand, one hundred five".