2144178497 has 2 divisors, whose sum is σ = 2144178498. Its totient is φ = 2144178496.

The previous prime is 2144178461. The next prime is 2144178523. The reversal of 2144178497 is 7948714412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1924664641 + 219513856 = 43871^2 + 14816^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144178497 - 2¹⁴ = 2144162113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2144178097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072089248 + 1072089249.

It is an arithmetic number, because the mean of its divisors is an integer number (1072089249).

Almost surely, 2^2144178497 is an apocalyptic number.

It is an amenable number.

2144178497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144178497 is an equidigital number, since it uses as much as digits as its factorization.

2144178497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 2144178497 is about 46305.2750450745. The cubic root of 2144178497 is about 1289.4969288114.

The spelling of 2144178497 in words is "two billion, one hundred forty-four million, one hundred seventy-eight thousand, four hundred ninety-seven".