1971975083 has 4 divisors (see below), whose sum is σ = 2123665488. Its totient is φ = 1820284680.

The previous prime is 1971975041. The next prime is 1971975143. The reversal of 1971975083 is 3805791791.

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

It is a cyclic number.

It is not a de Polignac number, because 1971975083 - 2¹⁴ = 1971958699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1971975013) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 75845183 + ... + 75845208.

It is an arithmetic number, because the mean of its divisors is an integer number (530916372).

Almost surely, 2^1971975083 is an apocalyptic number.

1971975083 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1971975083 is a deficient number, since it is larger than the sum of its proper divisors (151690405).

1971975083 is a wasteful number, since it uses less digits than its factorization.

1971975083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151690404.

The product of its (nonzero) digits is 476280, while the sum is 50.

The square root of 1971975083 is about 44406.9260701526. The cubic root of 1971975083 is about 1254.0084829512.

The spelling of 1971975083 in words is "one billion, nine hundred seventy-one million, nine hundred seventy-five thousand, eighty-three".