2141654819 has 2 divisors, whose sum is σ = 2141654820. Its totient is φ = 2141654818.

The previous prime is 2141654813. The next prime is 2141654833. The reversal of 2141654819 is 9184561412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2141654819 is a prime.

It is a super-2 number, since 2×2141654819² = 9173370727491845522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2141654813) 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 as a sum of consecutive naturals, namely, 1070827409 + 1070827410.

It is an arithmetic number, because the mean of its divisors is an integer number (1070827410).

Almost surely, 2^2141654819 is an apocalyptic number.

2141654819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141654819 is an equidigital number, since it uses as much as digits as its factorization.

2141654819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 2141654819 is about 46278.0165845512. The cubic root of 2141654819 is about 1288.9908215974.

The spelling of 2141654819 in words is "two billion, one hundred forty-one million, six hundred fifty-four thousand, eight hundred nineteen".