1976242161 has 8 divisors (see below), whose sum is σ = 2649710880. Its totient is φ = 1310134112.

The previous prime is 1976242159. The next prime is 1976242181. The reversal of 1976242161 is 1612426791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1976242161 - 2¹ = 1976242159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1976242141) 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 7 ways as a sum of consecutive naturals, for example, 1839540 + ... + 1840613.

It is an arithmetic number, because the mean of its divisors is an integer number (331213860).

Almost surely, 2^1976242161 is an apocalyptic number.

It is an amenable number.

1976242161 is a deficient number, since it is larger than the sum of its proper divisors (673468719).

1976242161 is a wasteful number, since it uses less digits than its factorization.

1976242161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680335.

The product of its digits is 36288, while the sum is 39.

The square root of 1976242161 is about 44454.9452929593. The cubic root of 1976242161 is about 1254.9123309288.

The spelling of 1976242161 in words is "one billion, nine hundred seventy-six million, two hundred forty-two thousand, one hundred sixty-one".