1601469361 has 2 divisors, whose sum is σ = 1601469362. Its totient is φ = 1601469360.

The previous prime is 1601469263. The next prime is 1601469383. The reversal of 1601469361 is 1639641061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1509788736 + 91680625 = 38856^2 + 9575^2 .

It is an emirp because it is prime and its reverse (1639641061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1601469361 - 2¹¹ = 1601467313 is a prime.

It is a super-2 number, since 2×1601469361² = 5129408228443496642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1601469361.

It is not a weakly prime, because it can be changed into another prime (1601461361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800734680 + 800734681.

It is an arithmetic number, because the mean of its divisors is an integer number (800734681).

Almost surely, 2^1601469361 is an apocalyptic number.

It is an amenable number.

1601469361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601469361 is an equidigital number, since it uses as much as digits as its factorization.

1601469361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1601469361 is about 40018.3627975958. The cubic root of 1601469361 is about 1169.9650222090.

The spelling of 1601469361 in words is "one billion, six hundred one million, four hundred sixty-nine thousand, three hundred sixty-one".