1160121601 has 2 divisors, whose sum is σ = 1160121602. Its totient is φ = 1160121600.

The previous prime is 1160121593. The next prime is 1160121623. The reversal of 1160121601 is 1061210611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794394225 + 365727376 = 28185^2 + 19124^2 .

It is an emirp because it is prime and its reverse (1061210611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1160121601 - 2³ = 1160121593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1160121631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580060800 + 580060801.

It is an arithmetic number, because the mean of its divisors is an integer number (580060801).

Almost surely, 2^1160121601 is an apocalyptic number.

It is an amenable number.

1160121601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1160121601 is an equidigital number, since it uses as much as digits as its factorization.

1160121601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1160121601 is about 34060.5578492191. The cubic root of 1160121601 is about 1050.7542882467.

The spelling of 1160121601 in words is "one billion, one hundred sixty million, one hundred twenty-one thousand, six hundred one".