2155323030139 has 2 divisors, whose sum is σ = 2155323030140. Its totient is φ = 2155323030138.

The previous prime is 2155323030089. The next prime is 2155323030163. The reversal of 2155323030139 is 9310303235512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2155323030139 - 2²⁷ = 2155188812411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2155323030098 and 2155323030107.

It is not a weakly prime, because it can be changed into another prime (2155323000139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077661515069 + 1077661515070.

It is an arithmetic number, because the mean of its divisors is an integer number (1077661515070).

Almost surely, 2^{2155323030139} is an apocalyptic number.

2155323030139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155323030139 is an equidigital number, since it uses as much as digits as its factorization.

2155323030139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 37.

The spelling of 2155323030139 in words is "two trillion, one hundred fifty-five billion, three hundred twenty-three million, thirty thousand, one hundred thirty-nine".