1047262813 has 2 divisors, whose sum is σ = 1047262814. Its totient is φ = 1047262812.

The previous prime is 1047262793. The next prime is 1047262817. The reversal of 1047262813 is 3182627401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 993636484 + 53626329 = 31522^2 + 7323^2 .

It is an emirp because it is prime and its reverse (3182627401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1047262813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047262817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523631406 + 523631407.

It is an arithmetic number, because the mean of its divisors is an integer number (523631407).

Almost surely, 2^1047262813 is an apocalyptic number.

It is an amenable number.

1047262813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047262813 is an equidigital number, since it uses as much as digits as its factorization.

1047262813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1047262813 is about 32361.4402182598. The cubic root of 1047262813 is about 1015.5123924104.

The spelling of 1047262813 in words is "one billion, forty-seven million, two hundred sixty-two thousand, eight hundred thirteen".