1601326073 has 2 divisors, whose sum is σ = 1601326074. Its totient is φ = 1601326072.

The previous prime is 1601326057. The next prime is 1601326081. The reversal of 1601326073 is 3706231061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1480941289 + 120384784 = 38483^2 + 10972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601326073 - 2⁴ = 1601326057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1601326043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800663036 + 800663037.

It is an arithmetic number, because the mean of its divisors is an integer number (800663037).

Almost surely, 2^1601326073 is an apocalyptic number.

It is an amenable number.

1601326073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601326073 is an equidigital number, since it uses as much as digits as its factorization.

1601326073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 1601326073 is about 40016.5724794116. The cubic root of 1601326073 is about 1169.9301278068.

The spelling of 1601326073 in words is "one billion, six hundred one million, three hundred twenty-six thousand, seventy-three".