143422691 has 2 divisors, whose sum is σ = 143422692. Its totient is φ = 143422690.

The previous prime is 143422667. The next prime is 143422703. The reversal of 143422691 is 196224341.

It is a strong prime.

It is an emirp because it is prime and its reverse (196224341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143422691 - 2¹⁰ = 143421667 is a prime.

It is equal to p_8094632 and since 143422691 and 8094632 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (143425691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71711345 + 71711346.

It is an arithmetic number, because the mean of its divisors is an integer number (71711346).

Almost surely, 2^143422691 is an apocalyptic number.

143422691 is a deficient number, since it is larger than the sum of its proper divisors (1).

143422691 is an equidigital number, since it uses as much as digits as its factorization.

143422691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 143422691 is about 11975.9213006766. The cubic root of 143422691 is about 523.4468881025.

The spelling of 143422691 in words is "one hundred forty-three million, four hundred twenty-two thousand, six hundred ninety-one".