1601007197 has 2 divisors, whose sum is σ = 1601007198. Its totient is φ = 1601007196.

The previous prime is 1601007179. The next prime is 1601007211. The reversal of 1601007197 is 7917001061.

Together with previous prime (1601007179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1151312761 + 449694436 = 33931^2 + 21206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601007197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601007157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800503598 + 800503599.

It is an arithmetic number, because the mean of its divisors is an integer number (800503599).

Almost surely, 2^1601007197 is an apocalyptic number.

It is an amenable number.

1601007197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601007197 is an equidigital number, since it uses as much as digits as its factorization.

1601007197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 1601007197 is about 40012.5879817839. The cubic root of 1601007197 is about 1169.8524656301.

The spelling of 1601007197 in words is "one billion, six hundred one million, seven thousand, one hundred ninety-seven".