1131396173 has 16 divisors (see below), whose sum is σ = 1219200000. Its totient is φ = 1046529072.

The previous prime is 1131396163. The next prime is 1131396179. The reversal of 1131396173 is 3716931311.

It is a de Polignac number, because none of the positive numbers 2^k-1131396173 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 (1131396179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444338 + ... + 446876.

It is an arithmetic number, because the mean of its divisors is an integer number (76200000).

Almost surely, 2^1131396173 is an apocalyptic number.

It is an amenable number.

1131396173 is a deficient number, since it is larger than the sum of its proper divisors (87803827).

1131396173 is a wasteful number, since it uses less digits than its factorization.

1131396173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104.

The product of its digits is 10206, while the sum is 35.

The square root of 1131396173 is about 33636.2330381986. The cubic root of 1131396173 is about 1042.0092361180.

The spelling of 1131396173 in words is "one billion, one hundred thirty-one million, three hundred ninety-six thousand, one hundred seventy-three".