143429623 has 2 divisors, whose sum is σ = 143429624. Its totient is φ = 143429622.

The previous prime is 143429617. The next prime is 143429701. The reversal of 143429623 is 326924341.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143429623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143429023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71714811 + 71714812.

It is an arithmetic number, because the mean of its divisors is an integer number (71714812).

Almost surely, 2^143429623 is an apocalyptic number.

143429623 is a deficient number, since it is larger than the sum of its proper divisors (1).

143429623 is an equidigital number, since it uses as much as digits as its factorization.

143429623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 143429623 is about 11976.2107112392. The cubic root of 143429623 is about 523.4553211599.

The spelling of 143429623 in words is "one hundred forty-three million, four hundred twenty-nine thousand, six hundred twenty-three".