143145923 has 2 divisors, whose sum is σ = 143145924. Its totient is φ = 143145922.

The previous prime is 143145911. The next prime is 143145949. The reversal of 143145923 is 329541341.

It is a weak prime.

It is an emirp because it is prime and its reverse (329541341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143145923 - 2¹⁶ = 143080387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143145923.

It is not a weakly prime, because it can be changed into another prime (143145823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71572961 + 71572962.

It is an arithmetic number, because the mean of its divisors is an integer number (71572962).

Almost surely, 2^143145923 is an apocalyptic number.

143145923 is a deficient number, since it is larger than the sum of its proper divisors (1).

143145923 is an equidigital number, since it uses as much as digits as its factorization.

143145923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 143145923 is about 11964.3605345208. The cubic root of 143145923 is about 523.1099664330.

The spelling of 143145923 in words is "one hundred forty-three million, one hundred forty-five thousand, nine hundred twenty-three".