2148498911 has 4 divisors (see below), whose sum is σ = 2313768072. Its totient is φ = 1983229752.

The previous prime is 2148498899. The next prime is 2148498917. The reversal of 2148498911 is 1198948412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2148498911 - 2¹⁴ = 2148482527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148498917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82634561 + ... + 82634586.

It is an arithmetic number, because the mean of its divisors is an integer number (578442018).

Almost surely, 2^2148498911 is an apocalyptic number.

2148498911 is a deficient number, since it is larger than the sum of its proper divisors (165269161).

2148498911 is a wasteful number, since it uses less digits than its factorization.

2148498911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165269160.

The product of its digits is 165888, while the sum is 47.

The square root of 2148498911 is about 46351.9029922181. The cubic root of 2148498911 is about 1290.3624386720.

The spelling of 2148498911 in words is "two billion, one hundred forty-eight million, four hundred ninety-eight thousand, nine hundred eleven".