1982745195 has 16 divisors (see below), whose sum is σ = 3185671680. Its totient is φ = 1053037664.

The previous prime is 1982745143. The next prime is 1982745197. The reversal of 1982745195 is 5915472891.

It is a cyclic number.

It is not a de Polignac number, because 1982745195 - 2²⁴ = 1965967979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1982745197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272949 + ... + 280118.

It is an arithmetic number, because the mean of its divisors is an integer number (199104480).

Almost surely, 2^1982745195 is an apocalyptic number.

1982745195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1982745195 is a deficient number, since it is larger than the sum of its proper divisors (1202926485).

1982745195 is a wasteful number, since it uses less digits than its factorization.

1982745195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553314.

The product of its digits is 907200, while the sum is 51.

The square root of 1982745195 is about 44528.0270728448. The cubic root of 1982745195 is about 1256.2872978209.

The spelling of 1982745195 in words is "one billion, nine hundred eighty-two million, seven hundred forty-five thousand, one hundred ninety-five".