1199245273 has 2 divisors, whose sum is σ = 1199245274. Its totient is φ = 1199245272.

The previous prime is 1199245237. The next prime is 1199245301. The reversal of 1199245273 is 3725429911.

Together with previous prime (1199245237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627652809 + 571592464 = 25053^2 + 23908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1199245273 - 2¹⁷ = 1199114201 is a prime.

It is a super-3 number, since 3×1199245273³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1199245573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599622636 + 599622637.

It is an arithmetic number, because the mean of its divisors is an integer number (599622637).

Almost surely, 2^1199245273 is an apocalyptic number.

It is an amenable number.

1199245273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199245273 is an equidigital number, since it uses as much as digits as its factorization.

1199245273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 1199245273 is about 34630.1208920789. The cubic root of 1199245273 is about 1062.4357399291.

The spelling of 1199245273 in words is "one billion, one hundred ninety-nine million, two hundred forty-five thousand, two hundred seventy-three".