2355160921 has 2 divisors, whose sum is σ = 2355160922. Its totient is φ = 2355160920.

The previous prime is 2355160883. The next prime is 2355160933. The reversal of 2355160921 is 1290615532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291683600 + 1063477321 = 35940^2 + 32611^2 .

It is a cyclic number.

It is not a de Polignac number, because 2355160921 - 2²⁵ = 2321606489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2355160961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177580460 + 1177580461.

It is an arithmetic number, because the mean of its divisors is an integer number (1177580461).

Almost surely, 2^2355160921 is an apocalyptic number.

It is an amenable number.

2355160921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355160921 is an equidigital number, since it uses as much as digits as its factorization.

2355160921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 2355160921 is about 48530.0002163610. Note that the first 3 decimals coincide. The cubic root of 2355160921 is about 1330.4754402885.

The spelling of 2355160921 in words is "two billion, three hundred fifty-five million, one hundred sixty thousand, nine hundred twenty-one".