1197380143 has 4 divisors (see below), whose sum is σ = 1198441840. Its totient is φ = 1196318448.

The previous prime is 1197380141. The next prime is 1197380213. The reversal of 1197380143 is 3410837911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1197380143 - 2¹ = 1197380141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197380141) 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 3 ways as a sum of consecutive naturals, for example, 529155 + ... + 531412.

It is an arithmetic number, because the mean of its divisors is an integer number (299610460).

Almost surely, 2^1197380143 is an apocalyptic number.

1197380143 is a deficient number, since it is larger than the sum of its proper divisors (1061697).

1197380143 is a wasteful number, since it uses less digits than its factorization.

1197380143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061696.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1197380143 is about 34603.1811109904. The cubic root of 1197380143 is about 1061.8846686313.

The spelling of 1197380143 in words is "one billion, one hundred ninety-seven million, three hundred eighty thousand, one hundred forty-three".