2139282481522 has 4 divisors (see below), whose sum is σ = 3208923722286. Its totient is φ = 1069641240760.

The previous prime is 2139282481513. The next prime is 2139282481537. The reversal of 2139282481522 is 2251842829312.

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

It can be written as a sum of positive squares in only one way, i.e., 1706056557921 + 433225923601 = 1306161^2 + 658199^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534820620379 + ... + 534820620382.

Almost surely, 2^{2139282481522} is an apocalyptic number.

2139282481522 is a deficient number, since it is larger than the sum of its proper divisors (1069641240764).

2139282481522 is a wasteful number, since it uses less digits than its factorization.

2139282481522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069641240763.

The product of its digits is 1105920, while the sum is 49.

The spelling of 2139282481522 in words is "two trillion, one hundred thirty-nine billion, two hundred eighty-two million, four hundred eighty-one thousand, five hundred twenty-two".