1601286977 has 2 divisors, whose sum is σ = 1601286978. Its totient is φ = 1601286976.

The previous prime is 1601286917. The next prime is 1601287003. The reversal of 1601286977 is 7796821061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1597121296 + 4165681 = 39964^2 + 2041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601286977 - 2¹⁶ = 1601221441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1601286917) 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, 800643488 + 800643489.

It is an arithmetic number, because the mean of its divisors is an integer number (800643489).

Almost surely, 2^1601286977 is an apocalyptic number.

It is an amenable number.

1601286977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601286977 is an equidigital number, since it uses as much as digits as its factorization.

1601286977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 1601286977 is about 40016.0839788203. The cubic root of 1601286977 is about 1169.9206065395.

The spelling of 1601286977 in words is "one billion, six hundred one million, two hundred eighty-six thousand, nine hundred seventy-seven".