20231429 has 2 divisors, whose sum is σ = 20231430. Its totient is φ = 20231428.

The previous prime is 20231423. The next prime is 20231461. The reversal of 20231429 is 92413202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17623204 + 2608225 = 4198^2 + 1615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20231429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20231423) 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 as a sum of consecutive naturals, namely, 10115714 + 10115715.

It is an arithmetic number, because the mean of its divisors is an integer number (10115715).

Almost surely, 2^20231429 is an apocalyptic number.

It is an amenable number.

20231429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231429 is an equidigital number, since it uses as much as digits as its factorization.

20231429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20231429 is about 4497.9360822493. The cubic root of 20231429 is about 272.4847406095.

The spelling of 20231429 in words is "twenty million, two hundred thirty-one thousand, four hundred twenty-nine".