143920994387 has 2 divisors, whose sum is σ = 143920994388. Its totient is φ = 143920994386.

The previous prime is 143920994293. The next prime is 143920994473. The reversal of 143920994387 is 783499029341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143920994387 - 2²⁶ = 143853885523 is a prime.

It is not a weakly prime, because it can be changed into another prime (143920993387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71960497193 + 71960497194.

It is an arithmetic number, because the mean of its divisors is an integer number (71960497194).

Almost surely, 2^143920994387 is an apocalyptic number.

143920994387 is a deficient number, since it is larger than the sum of its proper divisors (1).

143920994387 is an equidigital number, since it uses as much as digits as its factorization.

143920994387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 143920994387 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred ninety-four thousand, three hundred eighty-seven".