143961379 has 2 divisors, whose sum is σ = 143961380. Its totient is φ = 143961378.

The previous prime is 143961353. The next prime is 143961383. The reversal of 143961379 is 973169341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143961379 - 2¹¹ = 143959331 is a prime.

It is not a weakly prime, because it can be changed into another prime (143961319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71980689 + 71980690.

It is an arithmetic number, because the mean of its divisors is an integer number (71980690).

Almost surely, 2^143961379 is an apocalyptic number.

143961379 is a deficient number, since it is larger than the sum of its proper divisors (1).

143961379 is an equidigital number, since it uses as much as digits as its factorization.

143961379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 143961379 is about 11998.3906837542. The cubic root of 143961379 is about 524.1014155531.

The spelling of 143961379 in words is "one hundred forty-three million, nine hundred sixty-one thousand, three hundred seventy-nine".