1195897313 has 8 divisors (see below), whose sum is σ = 1322697768. Its totient is φ = 1074069504.

The previous prime is 1195897303. The next prime is 1195897321. The reversal of 1195897313 is 3137985911.

It can be written as a sum of positive squares in 4 ways, for example, as 372953344 + 822943969 = 19312^2 + 28687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1195897313 - 2²⁰ = 1194848737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1195897303) 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 in 7 ways as a sum of consecutive naturals, for example, 1242656 + ... + 1243617.

It is an arithmetic number, because the mean of its divisors is an integer number (165337221).

Almost surely, 2^1195897313 is an apocalyptic number.

1195897313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1195897313 is a deficient number, since it is larger than the sum of its proper divisors (126800455).

1195897313 is a wasteful number, since it uses less digits than its factorization.

1195897313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486323.

The product of its digits is 204120, while the sum is 47.

The square root of 1195897313 is about 34581.7482640771. The cubic root of 1195897313 is about 1061.4461432140.

The spelling of 1195897313 in words is "one billion, one hundred ninety-five million, eight hundred ninety-seven thousand, three hundred thirteen".