2147141638 has 4 divisors (see below), whose sum is σ = 3220712460. Its totient is φ = 1073570818.

The previous prime is 2147141621. The next prime is 2147141639. The reversal of 2147141638 is 8361417412.

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

It is a super-2 number, since 2×2147141638² = 9220434427266646088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2147141597 and 2147141606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147141639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536785408 + ... + 536785411.

It is an arithmetic number, because the mean of its divisors is an integer number (805178115).

Almost surely, 2^2147141638 is an apocalyptic number.

2147141638 is a deficient number, since it is larger than the sum of its proper divisors (1073570822).

2147141638 is a wasteful number, since it uses less digits than its factorization.

2147141638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073570821.

The product of its digits is 32256, while the sum is 37.

The square root of 2147141638 is about 46337.2597161291. The cubic root of 2147141638 is about 1290.0906608558.

The spelling of 2147141638 in words is "two billion, one hundred forty-seven million, one hundred forty-one thousand, six hundred thirty-eight".