2215548140 has 48 divisors (see below), whose sum is σ = 5228411328. Its totient is φ = 782479104.

The previous prime is 2215548131. The next prime is 2215548149. The reversal of 2215548140 is 418455122.

It is an interprime number because it is at equal distance from previous prime (2215548131) and next prime (2215548149).

It is a junction number, because it is equal to n+sod(n) for n = 2215548097 and 2215548106.

It is not an unprimeable number, because it can be changed into a prime (2215548149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179267 + ... + 191226.

It is an arithmetic number, because the mean of its divisors is an integer number (108925236).

Almost surely, 2^2215548140 is an apocalyptic number.

2215548140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215548140 is an abundant number, since it is smaller than the sum of its proper divisors (3012863188).

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

2215548140 is a wasteful number, since it uses less digits than its factorization.

2215548140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370538 (or 370536 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 2215548140 is about 47069.6095161198. The cubic root of 2215548140 is about 1303.6481629161.

The spelling of 2215548140 in words is "two billion, two hundred fifteen million, five hundred forty-eight thousand, one hundred forty".