2978917133 has 2 divisors, whose sum is σ = 2978917134. Its totient is φ = 2978917132.

The previous prime is 2978917111. The next prime is 2978917153. The reversal of 2978917133 is 3317198792.

2978917133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2975375209 + 3541924 = 54547^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2978917133 - 2³⁰ = 1905175309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2978917153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489458566 + 1489458567.

It is an arithmetic number, because the mean of its divisors is an integer number (1489458567).

Almost surely, 2^2978917133 is an apocalyptic number.

It is an amenable number.

2978917133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978917133 is an equidigital number, since it uses as much as digits as its factorization.

2978917133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 50.

The square root of 2978917133 is about 54579.4570603263. The cubic root of 2978917133 is about 1438.8630964917.

The spelling of 2978917133 in words is "two billion, nine hundred seventy-eight million, nine hundred seventeen thousand, one hundred thirty-three".