1193138671 has 4 divisors (see below), whose sum is σ = 1193876344. Its totient is φ = 1192401000.

The previous prime is 1193138669. The next prime is 1193138689. The reversal of 1193138671 is 1768313911.

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 1193138671 - 2¹ = 1193138669 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 (1193139671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366405 + ... + 369646.

It is an arithmetic number, because the mean of its divisors is an integer number (298469086).

Almost surely, 2^1193138671 is an apocalyptic number.

1193138671 is a deficient number, since it is larger than the sum of its proper divisors (737673).

1193138671 is an equidigital number, since it uses as much as digits as its factorization.

1193138671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737672.

The product of its digits is 27216, while the sum is 40.

The square root of 1193138671 is about 34541.8394269906. The cubic root of 1193138671 is about 1060.6293494761.

The spelling of 1193138671 in words is "one billion, one hundred ninety-three million, one hundred thirty-eight thousand, six hundred seventy-one".