1005371641 has 2 divisors, whose sum is σ = 1005371642. Its totient is φ = 1005371640.

The previous prime is 1005371611. The next prime is 1005371693. The reversal of 1005371641 is 1461735001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 996728041 + 8643600 = 31571^2 + 2940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005371641 - 2¹⁹ = 1004847353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005371611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502685820 + 502685821.

It is an arithmetic number, because the mean of its divisors is an integer number (502685821).

Almost surely, 2^1005371641 is an apocalyptic number.

It is an amenable number.

1005371641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005371641 is an equidigital number, since it uses as much as digits as its factorization.

1005371641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1005371641 is about 31707.5959511282. The cubic root of 1005371641 is about 1001.7873504750.

The spelling of 1005371641 in words is "one billion, five million, three hundred seventy-one thousand, six hundred forty-one".