2148179893 has 2 divisors, whose sum is σ = 2148179894. Its totient is φ = 2148179892.

The previous prime is 2148179879. The next prime is 2148179897. The reversal of 2148179893 is 3989718412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317472209 + 830707684 = 36297^2 + 28822^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148179893 - 2⁵ = 2148179861 is a prime.

It is a super-2 number, since 2×2148179893² = 9229353705378982898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2148179893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148179897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074089946 + 1074089947.

It is an arithmetic number, because the mean of its divisors is an integer number (1074089947).

Almost surely, 2^2148179893 is an apocalyptic number.

It is an amenable number.

2148179893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148179893 is an equidigital number, since it uses as much as digits as its factorization.

2148179893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 2148179893 is about 46348.4616033801. The cubic root of 2148179893 is about 1290.2985693943.

The spelling of 2148179893 in words is "two billion, one hundred forty-eight million, one hundred seventy-nine thousand, eight hundred ninety-three".