1199513941 has 2 divisors, whose sum is σ = 1199513942. Its totient is φ = 1199513940.

The previous prime is 1199513933. The next prime is 1199513957. The reversal of 1199513941 is 1493159911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 647498916 + 552015025 = 25446^2 + 23495^2 .

It is an emirp because it is prime and its reverse (1493159911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1199513941 - 2³ = 1199513933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1199513911) 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, 599756970 + 599756971.

It is an arithmetic number, because the mean of its divisors is an integer number (599756971).

Almost surely, 2^1199513941 is an apocalyptic number.

It is an amenable number.

1199513941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199513941 is an equidigital number, since it uses as much as digits as its factorization.

1199513941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 43.

The square root of 1199513941 is about 34633.9997834498. Note that the first 3 decimals coincide. The cubic root of 1199513941 is about 1062.5150734840.

The spelling of 1199513941 in words is "one billion, one hundred ninety-nine million, five hundred thirteen thousand, nine hundred forty-one".