1081197079 has 2 divisors, whose sum is σ = 1081197080. Its totient is φ = 1081197078.

The previous prime is 1081196989. The next prime is 1081197083. The reversal of 1081197079 is 9707911801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1081197079 - 2¹³ = 1081188887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081167079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540598539 + 540598540.

It is an arithmetic number, because the mean of its divisors is an integer number (540598540).

Almost surely, 2^1081197079 is an apocalyptic number.

1081197079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081197079 is an equidigital number, since it uses as much as digits as its factorization.

1081197079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 1081197079 is about 32881.5613832433. The cubic root of 1081197079 is about 1026.3644977223.

The spelling of 1081197079 in words is "one billion, eighty-one million, one hundred ninety-seven thousand, seventy-nine".