1406143423429 has 2 divisors, whose sum is σ = 1406143423430. Its totient is φ = 1406143423428.

The previous prime is 1406143423427. The next prime is 1406143423471. The reversal of 1406143423429 is 9243243416041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1374076284100 + 32067139329 = 1172210^2 + 179073^2 .

It is an emirp because it is prime and its reverse (9243243416041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406143423429 - 2¹ = 1406143423427 is a prime.

It is a super-2 number, since 2×1406143423429² (a number of 25 digits) contains 22 as substring.

Together with 1406143423427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406143423423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703071711714 + 703071711715.

It is an arithmetic number, because the mean of its divisors is an integer number (703071711715).

Almost surely, 2^{1406143423429} is an apocalyptic number.

It is an amenable number.

1406143423429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406143423429 is an equidigital number, since it uses as much as digits as its factorization.

1406143423429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 1406143423429 in words is "one trillion, four hundred six billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred twenty-nine".