1231793 has 4 divisors (see below), whose sum is σ = 1241328. Its totient is φ = 1222260.

The previous prime is 1231787. The next prime is 1231799. The reversal of 1231793 is 3971321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1231787) and next prime (1231799).

It is a cyclic number.

It is not a de Polignac number, because 1231793 - 2¹⁰ = 1230769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4571 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (310332).

2^1231793 is an apocalyptic number.

It is an amenable number.

1231793 is a deficient number, since it is larger than the sum of its proper divisors (9535).

1231793 is an equidigital number, since it uses as much as digits as its factorization.

1231793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9534.

The product of its digits is 1134, while the sum is 26.

The square root of 1231793 is about 1109.8617030964. The cubic root of 1231793 is about 107.1961638655.

The spelling of 1231793 in words is "one million, two hundred thirty-one thousand, seven hundred ninety-three".