1056471869 has 2 divisors, whose sum is σ = 1056471870. Its totient is φ = 1056471868.

The previous prime is 1056471821. The next prime is 1056471881. The reversal of 1056471869 is 9681746501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1045746244 + 10725625 = 32338^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056471869 - 2²⁰ = 1055423293 is a prime.

It is a super-2 number, since 2×1056471869² = 2232265619976706322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056471809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528235934 + 528235935.

It is an arithmetic number, because the mean of its divisors is an integer number (528235935).

Almost surely, 2^1056471869 is an apocalyptic number.

It is an amenable number.

1056471869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056471869 is an equidigital number, since it uses as much as digits as its factorization.

1056471869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1056471869 is about 32503.4131900021. The cubic root of 1056471869 is about 1018.4803299225.

The spelling of 1056471869 in words is "one billion, fifty-six million, four hundred seventy-one thousand, eight hundred sixty-nine".