2148702643 has 4 divisors (see below), whose sum is σ = 2149827768. Its totient is φ = 2147577520.

The previous prime is 2148702637. The next prime is 2148702667. The reversal of 2148702643 is 3462078412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2148702643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148702623) 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, 559693 + ... + 563518.

It is an arithmetic number, because the mean of its divisors is an integer number (537456942).

Almost surely, 2^2148702643 is an apocalyptic number.

2148702643 is a deficient number, since it is larger than the sum of its proper divisors (1125125).

2148702643 is a wasteful number, since it uses less digits than its factorization.

2148702643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125124.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2148702643 is about 46354.1006060952. The cubic root of 2148702643 is about 1290.4032237072.

The spelling of 2148702643 in words is "two billion, one hundred forty-eight million, seven hundred two thousand, six hundred forty-three".