601965641 has 2 divisors, whose sum is σ = 601965642. Its totient is φ = 601965640.

The previous prime is 601965599. The next prime is 601965653. The reversal of 601965641 is 146569106.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417793600 + 184172041 = 20440^2 + 13571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601965641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 601965595 and 601965604.

It is not a weakly prime, because it can be changed into another prime (601965541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300982820 + 300982821.

It is an arithmetic number, because the mean of its divisors is an integer number (300982821).

Almost surely, 2^601965641 is an apocalyptic number.

It is an amenable number.

601965641 is a deficient number, since it is larger than the sum of its proper divisors (1).

601965641 is an equidigital number, since it uses as much as digits as its factorization.

601965641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 601965641 is about 24534.9880986317. The cubic root of 601965641 is about 844.3527090053.

The spelling of 601965641 in words is "six hundred one million, nine hundred sixty-five thousand, six hundred forty-one".