2948017981 has 2 divisors, whose sum is σ = 2948017982. Its totient is φ = 2948017980.

The previous prime is 2948017973. The next prime is 2948017999. The reversal of 2948017981 is 1897108492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2586637881 + 361380100 = 50859^2 + 19010^2 .

It is a cyclic number.

It is not a de Polignac number, because 2948017981 - 2³ = 2948017973 is a prime.

It is a super-2 number, since 2×2948017981² = 17381620032598632722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2948017921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474008990 + 1474008991.

It is an arithmetic number, because the mean of its divisors is an integer number (1474008991).

Almost surely, 2^2948017981 is an apocalyptic number.

It is an amenable number.

2948017981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2948017981 is an equidigital number, since it uses as much as digits as its factorization.

2948017981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 2948017981 is about 54295.6534264024. The cubic root of 2948017981 is about 1433.8708727593.

The spelling of 2948017981 in words is "two billion, nine hundred forty-eight million, seventeen thousand, nine hundred eighty-one".