2155360379 has 2 divisors, whose sum is σ = 2155360380. Its totient is φ = 2155360378.

The previous prime is 2155360367. The next prime is 2155360391. The reversal of 2155360379 is 9730635512.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2155360367) and next prime (2155360391).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155360379 is a prime.

It is not a weakly prime, because it can be changed into another prime (2155360349) 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, 1077680189 + 1077680190.

It is an arithmetic number, because the mean of its divisors is an integer number (1077680190).

Almost surely, 2^2155360379 is an apocalyptic number.

2155360379 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155360379 is an equidigital number, since it uses as much as digits as its factorization.

2155360379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 2155360379 is about 46425.8589473582. The cubic root of 2155360379 is about 1291.7346171805.

The spelling of 2155360379 in words is "two billion, one hundred fifty-five million, three hundred sixty thousand, three hundred seventy-nine".