1982102593 has 4 divisors (see below), whose sum is σ = 1985574448. Its totient is φ = 1978630740.

The previous prime is 1982102569. The next prime is 1982102599. The reversal of 1982102593 is 3952012891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3952012891 = 109 ⋅36256999.

It is a cyclic number.

It is not a de Polignac number, because 1982102593 - 2¹⁷ = 1981971521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982102599) 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, 1735071 + ... + 1736212.

It is an arithmetic number, because the mean of its divisors is an integer number (496393612).

Almost surely, 2^1982102593 is an apocalyptic number.

It is an amenable number.

1982102593 is a deficient number, since it is larger than the sum of its proper divisors (3471855).

1982102593 is an equidigital number, since it uses as much as digits as its factorization.

1982102593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471854.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1982102593 is about 44520.8107855192. The cubic root of 1982102593 is about 1256.1515634593.

The spelling of 1982102593 in words is "one billion, nine hundred eighty-two million, one hundred two thousand, five hundred ninety-three".