12193631 has 4 divisors (see below), whose sum is σ = 12257664. Its totient is φ = 12129600.

The previous prime is 12193619. The next prime is 12193661. The reversal of 12193631 is 13639121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13639121 = 233 ⋅58537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12193631 is a prime.

It is a super-2 number, since 2×12193631² = 297369273928322, which contains 22 as substring.

It is a deceptive number, since it divides R_12193630.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12193631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193661) 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, 31730 + ... + 32111.

It is an arithmetic number, because the mean of its divisors is an integer number (3064416).

Almost surely, 2^12193631 is an apocalyptic number.

12193631 is a deficient number, since it is larger than the sum of its proper divisors (64033).

12193631 is an equidigital number, since it uses as much as digits as its factorization.

12193631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64032.

The product of its digits is 972, while the sum is 26.

The square root of 12193631 is about 3491.9380005951. The cubic root of 12193631 is about 230.1676849005.

The spelling of 12193631 in words is "twelve million, one hundred ninety-three thousand, six hundred thirty-one".