2148215136 has 48 divisors (see below), whose sum is σ = 5833522800. Its totient is φ = 691378688.

The previous prime is 2148215123. The next prime is 2148215189. The reversal of 2148215136 is 6315128412.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2148215136² = 9229656541078996992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2148215097 and 2148215106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383031 + ... + 388598.

It is an arithmetic number, because the mean of its divisors is an integer number (121531725).

Almost surely, 2^2148215136 is an apocalyptic number.

It is an amenable number.

2148215136 is an abundant number, since it is smaller than the sum of its proper divisors (3685307664).

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

2148215136 is a wasteful number, since it uses less digits than its factorization.

2148215136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771671 (or 771663 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 2148215136 is about 46348.8417978271. The cubic root of 2148215136 is about 1290.3056255606.

The spelling of 2148215136 in words is "two billion, one hundred forty-eight million, two hundred fifteen thousand, one hundred thirty-six".