143996623 has 2 divisors, whose sum is σ = 143996624. Its totient is φ = 143996622.

The previous prime is 143996569. The next prime is 143996627. The reversal of 143996623 is 326699341.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143996623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143996623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143996627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71998311 + 71998312.

It is an arithmetic number, because the mean of its divisors is an integer number (71998312).

Almost surely, 2^143996623 is an apocalyptic number.

143996623 is a deficient number, since it is larger than the sum of its proper divisors (1).

143996623 is an equidigital number, since it uses as much as digits as its factorization.

143996623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 43.

The square root of 143996623 is about 11999.8592908417. The cubic root of 143996623 is about 524.1441814747.

The spelling of 143996623 in words is "one hundred forty-three million, nine hundred ninety-six thousand, six hundred twenty-three".