2148917492 has 12 divisors (see below), whose sum is σ = 3761381316. Its totient is φ = 1074237120.

The previous prime is 2148917483. The next prime is 2148917501. The reversal of 2148917492 is 2947198412.

It is an interprime number because it is at equal distance from previous prime (2148917483) and next prime (2148917501).

It can be written as a sum of positive squares in 2 ways, for example, as 692426596 + 1456490896 = 26314^2 + 38164^2 .

It is a congruent number.

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, 32543 + ... + 73190.

It is an arithmetic number, because the mean of its divisors is an integer number (313448443).

Almost surely, 2^2148917492 is an apocalyptic number.

It is an amenable number.

2148917492 is a deficient number, since it is larger than the sum of its proper divisors (1612463824).

2148917492 is a wasteful number, since it uses less digits than its factorization.

2148917492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110818 (or 110816 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 2148917492 is about 46356.4180238292. The cubic root of 2148917492 is about 1290.4462314578.

The spelling of 2148917492 in words is "two billion, one hundred forty-eight million, nine hundred seventeen thousand, four hundred ninety-two".