1084121279 has 2 divisors, whose sum is σ = 1084121280. Its totient is φ = 1084121278.

The previous prime is 1084121237. The next prime is 1084121293. The reversal of 1084121279 is 9721214801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1084121279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1084121299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542060639 + 542060640.

It is an arithmetic number, because the mean of its divisors is an integer number (542060640).

Almost surely, 2^1084121279 is an apocalyptic number.

1084121279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084121279 is an equidigital number, since it uses as much as digits as its factorization.

1084121279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1084121279 is about 32925.9970084430. The cubic root of 1084121279 is about 1027.2889648148.

The spelling of 1084121279 in words is "one billion, eighty-four million, one hundred twenty-one thousand, two hundred seventy-nine".