23143429 has 2 divisors, whose sum is σ = 23143430. Its totient is φ = 23143428.

The previous prime is 23143423. The next prime is 23143459. The reversal of 23143429 is 92434132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18404100 + 4739329 = 4290^2 + 2177^2 .

It is a cyclic number.

It is not a de Polignac number, because 23143429 - 2⁵ = 23143397 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23143397 and 23143406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23143423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571714 + 11571715.

It is an arithmetic number, because the mean of its divisors is an integer number (11571715).

Almost surely, 2^23143429 is an apocalyptic number.

It is an amenable number.

23143429 is a deficient number, since it is larger than the sum of its proper divisors (1).

23143429 is an equidigital number, since it uses as much as digits as its factorization.

23143429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 23143429 is about 4810.7617899871. The cubic root of 23143429 is about 284.9766226850.

It can be divided in two parts, 231 and 43429, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 23143429 in words is "twenty-three million, one hundred forty-three thousand, four hundred twenty-nine".