2154279148 has 12 divisors (see below), whose sum is σ = 4308558352. Its totient is φ = 923262480.

The previous prime is 2154279143. The next prime is 2154279167. The reversal of 2154279148 is 8419724512.

2154279148 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2154279143) 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, 38469243 + ... + 38469298.

Almost surely, 2^2154279148 is an apocalyptic number.

2154279148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2154279148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154279148 is a wasteful number, since it uses less digits than its factorization.

2154279148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76938552 (or 76938550 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 2154279148 is about 46414.2127801388. The cubic root of 2154279148 is about 1291.5185826007.

The spelling of 2154279148 in words is "two billion, one hundred fifty-four million, two hundred seventy-nine thousand, one hundred forty-eight".