1601464517 has 2 divisors, whose sum is σ = 1601464518. Its totient is φ = 1601464516.

The previous prime is 1601464507. The next prime is 1601464519. The reversal of 1601464517 is 7154641061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861950881 + 739513636 = 29359^2 + 27194^2 .

It is an emirp because it is prime and its reverse (7154641061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601464517 is a prime.

Together with 1601464519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601464519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800732258 + 800732259.

It is an arithmetic number, because the mean of its divisors is an integer number (800732259).

Almost surely, 2^1601464517 is an apocalyptic number.

It is an amenable number.

1601464517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601464517 is an equidigital number, since it uses as much as digits as its factorization.

1601464517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1601464517 is about 40018.3022753340. The cubic root of 1601464517 is about 1169.9638426014.

The spelling of 1601464517 in words is "one billion, six hundred one million, four hundred sixty-four thousand, five hundred seventeen".