20132347 has 2 divisors, whose sum is σ = 20132348. Its totient is φ = 20132346.

The previous prime is 20132341. The next prime is 20132389. The reversal of 20132347 is 74323102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20132347 - 2⁷ = 20132219 is a prime.

It is a super-2 number, since 2×20132347² = 810622791456818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20132341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066173 + 10066174.

It is an arithmetic number, because the mean of its divisors is an integer number (10066174).

Almost surely, 2^20132347 is an apocalyptic number.

20132347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132347 is an equidigital number, since it uses as much as digits as its factorization.

20132347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20132347 is about 4486.9084011154. The cubic root of 20132347 is about 272.0391875128.

Adding to 20132347 its reverse (74323102), we get a palindrome (94455449).

The spelling of 20132347 in words is "twenty million, one hundred thirty-two thousand, three hundred forty-seven".