1200026497 has 2 divisors, whose sum is σ = 1200026498. Its totient is φ = 1200026496.

The previous prime is 1200026459. The next prime is 1200026521. The reversal of 1200026497 is 7946200021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086625296 + 113401201 = 32964^2 + 10649^2 .

It is an emirp because it is prime and its reverse (7946200021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200026497 - 2²⁷ = 1065808769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200026407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600013248 + 600013249.

It is an arithmetic number, because the mean of its divisors is an integer number (600013249).

Almost surely, 2^1200026497 is an apocalyptic number.

It is an amenable number.

1200026497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200026497 is an equidigital number, since it uses as much as digits as its factorization.

1200026497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1200026497 is about 34641.3986005184. The cubic root of 1200026497 is about 1062.6663905873. Note that the first 3 decimals are identical.

The spelling of 1200026497 in words is "one billion, two hundred million, twenty-six thousand, four hundred ninety-seven".