1270161601 has 2 divisors, whose sum is σ = 1270161602. Its totient is φ = 1270161600.

The previous prime is 1270161593. The next prime is 1270161653. The reversal of 1270161601 is 1061610721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1129027201 + 141134400 = 33601^2 + 11880^2 .

It is an emirp because it is prime and its reverse (1061610721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1270161601 - 2³ = 1270161593 is a prime.

It is a super-2 number, since 2×1270161601² = 3226620985309766402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1270161301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635080800 + 635080801.

It is an arithmetic number, because the mean of its divisors is an integer number (635080801).

Almost surely, 2^1270161601 is an apocalyptic number.

It is an amenable number.

1270161601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270161601 is an equidigital number, since it uses as much as digits as its factorization.

1270161601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1270161601 is about 35639.3266069941. The cubic root of 1270161601 is about 1082.9780634077.

The spelling of 1270161601 in words is "one billion, two hundred seventy million, one hundred sixty-one thousand, six hundred one".