1197606139 has 2 divisors, whose sum is σ = 1197606140. Its totient is φ = 1197606138.

The previous prime is 1197606083. The next prime is 1197606197. The reversal of 1197606139 is 9316067911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1197606139 - 2¹⁵ = 1197573371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1197606095 and 1197606104.

It is not a weakly prime, because it can be changed into another prime (1197606199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598803069 + 598803070.

It is an arithmetic number, because the mean of its divisors is an integer number (598803070).

Almost surely, 2^1197606139 is an apocalyptic number.

1197606139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197606139 is an equidigital number, since it uses as much as digits as its factorization.

1197606139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1197606139 is about 34606.4464948368. The cubic root of 1197606139 is about 1061.9514718635.

The spelling of 1197606139 in words is "one billion, one hundred ninety-seven million, six hundred six thousand, one hundred thirty-nine".