143890379 has 2 divisors, whose sum is σ = 143890380. Its totient is φ = 143890378.

The previous prime is 143890349. The next prime is 143890381. The reversal of 143890379 is 973098341.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143890379 is a prime.

Together with 143890381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143890309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71945189 + 71945190.

It is an arithmetic number, because the mean of its divisors is an integer number (71945190).

Almost surely, 2^143890379 is an apocalyptic number.

143890379 is a deficient number, since it is larger than the sum of its proper divisors (1).

143890379 is an equidigital number, since it uses as much as digits as its factorization.

143890379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 143890379 is about 11995.4315887341. The cubic root of 143890379 is about 524.0152412384.

The spelling of 143890379 in words is "one hundred forty-three million, eight hundred ninety thousand, three hundred seventy-nine".