2155462279 has 2 divisors, whose sum is σ = 2155462280. Its totient is φ = 2155462278.

The previous prime is 2155462259. The next prime is 2155462289. The reversal of 2155462279 is 9722645512.

2155462279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2155462279 - 2¹⁵ = 2155429511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155462229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077731139 + 1077731140.

It is an arithmetic number, because the mean of its divisors is an integer number (1077731140).

Almost surely, 2^2155462279 is an apocalyptic number.

2155462279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155462279 is an equidigital number, since it uses as much as digits as its factorization.

2155462279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 2155462279 is about 46426.9563831186. The cubic root of 2155462279 is about 1291.7549735108.

The spelling of 2155462279 in words is "two billion, one hundred fifty-five million, four hundred sixty-two thousand, two hundred seventy-nine".