2155360619 has 2 divisors, whose sum is σ = 2155360620. Its totient is φ = 2155360618.

The previous prime is 2155360607. The next prime is 2155360621. The reversal of 2155360619 is 9160635512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2155360619 - 2²⁸ = 1886925163 is a prime.

It is a super-2 number, since 2×2155360619² = 9291158795872126322, which contains 22 as substring.

Together with 2155360621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2155360819) 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, 1077680309 + 1077680310.

It is an arithmetic number, because the mean of its divisors is an integer number (1077680310).

Almost surely, 2^2155360619 is an apocalyptic number.

2155360619 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155360619 is an equidigital number, since it uses as much as digits as its factorization.

2155360619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 2155360619 is about 46425.8615321245. The cubic root of 2155360619 is about 1291.7346651255.

The spelling of 2155360619 in words is "two billion, one hundred fifty-five million, three hundred sixty thousand, six hundred nineteen".