1601360281 has 2 divisors, whose sum is σ = 1601360282. Its totient is φ = 1601360280.

The previous prime is 1601360263. The next prime is 1601360287. The reversal of 1601360281 is 1820631061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1102240000 + 499120281 = 33200^2 + 22341^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601360281 - 2⁷ = 1601360153 is a prime.

It is a super-2 number, since 2×1601360281² = 5128709499128797922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1601360287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800680140 + 800680141.

It is an arithmetic number, because the mean of its divisors is an integer number (800680141).

Almost surely, 2^1601360281 is an apocalyptic number.

It is an amenable number.

1601360281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601360281 is an equidigital number, since it uses as much as digits as its factorization.

1601360281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1601360281 is about 40016.9999000425. Note that the first 4 decimals coincide. The cubic root of 1601360281 is about 1169.9384585450.

The spelling of 1601360281 in words is "one billion, six hundred one million, three hundred sixty thousand, two hundred eighty-one".