1000313189 has 2 divisors, whose sum is σ = 1000313190. Its totient is φ = 1000313188.

The previous prime is 1000313137. The next prime is 1000313213. The reversal of 1000313189 is 9813130001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613404289 + 386908900 = 24767^2 + 19670^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000313189 - 2²⁰ = 999264613 is a prime.

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 (1000313689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500156594 + 500156595.

It is an arithmetic number, because the mean of its divisors is an integer number (500156595).

Almost surely, 2^1000313189 is an apocalyptic number.

It is an amenable number.

1000313189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000313189 is an equidigital number, since it uses as much as digits as its factorization.

1000313189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1000313189 is about 31627.7281669108. The cubic root of 1000313189 is about 1000.1043854366.

The spelling of 1000313189 in words is "one billion, three hundred thirteen thousand, one hundred eighty-nine".