2148636254 has 16 divisors (see below), whose sum is σ = 3235252848. Its totient is φ = 1070226432.

The previous prime is 2148636253. The next prime is 2148636311. The reversal of 2148636254 is 4526368412.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148636253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914309 + ... + 916655.

It is an arithmetic number, because the mean of its divisors is an integer number (202203303).

Almost surely, 2^2148636254 is an apocalyptic number.

2148636254 is a deficient number, since it is larger than the sum of its proper divisors (1086616594).

2148636254 is a wasteful number, since it uses less digits than its factorization.

2148636254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899.

The product of its digits is 276480, while the sum is 41.

The square root of 2148636254 is about 46353.3844934758. The cubic root of 2148636254 is about 1290.3899336006.

The spelling of 2148636254 in words is "two billion, one hundred forty-eight million, six hundred thirty-six thousand, two hundred fifty-four".