1139880697 has 2 divisors, whose sum is σ = 1139880698. Its totient is φ = 1139880696.

The previous prime is 1139880631. The next prime is 1139880739. The reversal of 1139880697 is 7960889311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847333881 + 292546816 = 29109^2 + 17104^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139880697 - 2¹⁹ = 1139356409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1139880397) 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, 569940348 + 569940349.

It is an arithmetic number, because the mean of its divisors is an integer number (569940349).

Almost surely, 2^1139880697 is an apocalyptic number.

It is an amenable number.

1139880697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139880697 is an equidigital number, since it uses as much as digits as its factorization.

1139880697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 1139880697 is about 33762.1192610890. The cubic root of 1139880697 is about 1044.6074842778.

The spelling of 1139880697 in words is "one billion, one hundred thirty-nine million, eight hundred eighty thousand, six hundred ninety-seven".