1601040013 has 2 divisors, whose sum is σ = 1601040014. Its totient is φ = 1601040012.

The previous prime is 1601039939. The next prime is 1601040019. The reversal of 1601040013 is 3100401061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008507049 + 592532964 = 31757^2 + 24342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601040013 - 2¹⁷ = 1600908941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601040019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800520006 + 800520007.

It is an arithmetic number, because the mean of its divisors is an integer number (800520007).

Almost surely, 2^1601040013 is an apocalyptic number.

It is an amenable number.

1601040013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601040013 is an equidigital number, since it uses as much as digits as its factorization.

1601040013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1601040013 is about 40012.9980506335. The cubic root of 1601040013 is about 1169.8604584354.

Adding to 1601040013 its reverse (3100401061), we get a palindrome (4701441074).

The spelling of 1601040013 in words is "one billion, six hundred one million, forty thousand, thirteen".