1173431 has 4 divisors (see below), whose sum is σ = 1341072. Its totient is φ = 1005792.

The previous prime is 1173407. The next prime is 1173433. The reversal of 1173431 is 1343711.

It is a happy number.

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 1173431 - 2¹⁰ = 1172407 is a prime.

It is a super-3 number, since 3×1173431³ = 4847233340910065973, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173433) 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, 83810 + ... + 83823.

It is an arithmetic number, because the mean of its divisors is an integer number (335268).

2^1173431 is an apocalyptic number.

1173431 is a deficient number, since it is larger than the sum of its proper divisors (167641).

1173431 is an equidigital number, since it uses as much as digits as its factorization.

1173431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167640.

The product of its digits is 252, while the sum is 20.

The square root of 1173431 is about 1083.2502019386. The cubic root of 1173431 is about 105.4757249690.

The spelling of 1173431 in words is "one million, one hundred seventy-three thousand, four hundred thirty-one".