1231193 has 2 divisors, whose sum is σ = 1231194. Its totient is φ = 1231192.

The previous prime is 1231177. The next prime is 1231199. The reversal of 1231193 is 3911321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635209 + 595984 = 797^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231193 - 2⁴ = 1231177 is a prime.

It is equal to p₉₅₁₃₂ and since 1231193 and 95132 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1231199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615596 + 615597.

It is an arithmetic number, because the mean of its divisors is an integer number (615597).

2^1231193 is an apocalyptic number.

It is an amenable number.

1231193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231193 is an equidigital number, since it uses as much as digits as its factorization.

1231193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 20.

The square root of 1231193 is about 1109.5913662245. The cubic root of 1231193 is about 107.1787561397.

The spelling of 1231193 in words is "one million, two hundred thirty-one thousand, one hundred ninety-three".