1881283522 has 4 divisors (see below), whose sum is σ = 2821925286. Its totient is φ = 940641760.

The previous prime is 1881283489. The next prime is 1881283541. The reversal of 1881283522 is 2253821881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2253821881 = 8429 ⋅267389.

It can be written as a sum of positive squares in only one way, i.e., 1855972561 + 25310961 = 43081^2 + 5031^2 .

It is a Smith number, since the sum of its digits (40) 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 polite number, since it can be written as a sum of consecutive naturals, namely, 470320879 + ... + 470320882.

Almost surely, 2^1881283522 is an apocalyptic number.

1881283522 is a deficient number, since it is larger than the sum of its proper divisors (940641764).

1881283522 is an equidigital number, since it uses as much as digits as its factorization.

1881283522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940641763.

The product of its digits is 61440, while the sum is 40.

The square root of 1881283522 is about 43373.7653657139. The cubic root of 1881283522 is about 1234.4819677698.

The spelling of 1881283522 in words is "one billion, eight hundred eighty-one million, two hundred eighty-three thousand, five hundred twenty-two".