1976060081 has 4 divisors (see below), whose sum is σ = 1978630500. Its totient is φ = 1973489664.

The previous prime is 1976059951. The next prime is 1976060089. The reversal of 1976060081 is 1800606791.

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

It can be written as a sum of positive squares in 2 ways, for example, as 218773681 + 1757286400 = 14791^2 + 41920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1976060081 - 2¹⁴ = 1976043697 is a prime.

It is a super-2 number, since 2×1976060081² = 7809626887443453122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1976060089) 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, 1284056 + ... + 1285593.

It is an arithmetic number, because the mean of its divisors is an integer number (494657625).

Almost surely, 2^1976060081 is an apocalyptic number.

It is an amenable number.

1976060081 is a deficient number, since it is larger than the sum of its proper divisors (2570419).

1976060081 is an equidigital number, since it uses as much as digits as its factorization.

1976060081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570418.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1976060081 is about 44452.8973296455. The cubic root of 1976060081 is about 1254.8737895227.

The spelling of 1976060081 in words is "one billion, nine hundred seventy-six million, sixty thousand, eighty-one".