623432143 has 4 divisors (see below), whose sum is σ = 660104640. Its totient is φ = 586759648.

The previous prime is 623432099. The next prime is 623432153. The reversal of 623432143 is 341234326.

623432143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 623432143 - 2¹³ = 623423951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623432153) 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, 18336223 + ... + 18336256.

It is an arithmetic number, because the mean of its divisors is an integer number (165026160).

Almost surely, 2^623432143 is an apocalyptic number.

623432143 is a deficient number, since it is larger than the sum of its proper divisors (36672497).

623432143 is a wasteful number, since it uses less digits than its factorization.

623432143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36672496.

The product of its digits is 10368, while the sum is 28.

The square root of 623432143 is about 24968.6231698906. The cubic root of 623432143 is about 854.2724419485.

Adding to 623432143 its reverse (341234326), we get a palindrome (964666469).

The spelling of 623432143 in words is "six hundred twenty-three million, four hundred thirty-two thousand, one hundred forty-three".