2148154220 has 12 divisors (see below), whose sum is σ = 4511123904. Its totient is φ = 859261680.

The previous prime is 2148154199. The next prime is 2148154241. The reversal of 2148154220 is 224518412.

It is an interprime number because it is at equal distance from previous prime (2148154199) and next prime (2148154241).

It is a super-2 number, since 2×2148154220² = 9229133105807616800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53703836 + ... + 53703875.

It is an arithmetic number, because the mean of its divisors is an integer number (375926992).

Almost surely, 2^2148154220 is an apocalyptic number.

2148154220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2148154220 is an abundant number, since it is smaller than the sum of its proper divisors (2362969684).

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

2148154220 is a wasteful number, since it uses less digits than its factorization.

2148154220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107407720 (or 107407718 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2148154220 is about 46348.1846462189. The cubic root of 2148154220 is about 1290.2934292340.

The spelling of 2148154220 in words is "two billion, one hundred forty-eight million, one hundred fifty-four thousand, two hundred twenty".