1233161 has 4 divisors (see below), whose sum is σ = 1245972. Its totient is φ = 1220352.

The previous prime is 1233143. The next prime is 1233179. The reversal of 1233161 is 1613321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1233143) and next prime (1233179).

It can be written as a sum of positive squares in 2 ways, for example, as 913936 + 319225 = 956^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233161 - 2⁶ = 1233097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233101) 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, 6260 + ... + 6453.

It is an arithmetic number, because the mean of its divisors is an integer number (311493).

2^1233161 is an apocalyptic number.

It is an amenable number.

1233161 is a deficient number, since it is larger than the sum of its proper divisors (12811).

1233161 is an equidigital number, since it uses as much as digits as its factorization.

1233161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12810.

The product of its digits is 108, while the sum is 17.

The square root of 1233161 is about 1110.4778250825. The cubic root of 1233161 is about 107.2358323539.

Adding to 1233161 its reverse (1613321), we get a palindrome (2846482).

The spelling of 1233161 in words is "one million, two hundred thirty-three thousand, one hundred sixty-one".