2148815311 has 2 divisors, whose sum is σ = 2148815312. Its totient is φ = 2148815310.

The previous prime is 2148815287. The next prime is 2148815353. The reversal of 2148815311 is 1135188412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148815311 - 2⁷ = 2148815183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148815381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074407655 + 1074407656.

It is an arithmetic number, because the mean of its divisors is an integer number (1074407656).

Almost surely, 2^2148815311 is an apocalyptic number.

2148815311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148815311 is an equidigital number, since it uses as much as digits as its factorization.

2148815311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 34.

The square root of 2148815311 is about 46355.3158871774. The cubic root of 2148815311 is about 1290.4257775662.

The spelling of 2148815311 in words is "two billion, one hundred forty-eight million, eight hundred fifteen thousand, three hundred eleven".