1406143423397 has 2 divisors, whose sum is σ = 1406143423398. Its totient is φ = 1406143423396.

The previous prime is 1406143423393. The next prime is 1406143423423. The reversal of 1406143423397 is 7933243416041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362656994241 + 43486429156 = 1167329^2 + 208534^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406143423397 - 2² = 1406143423393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406143423393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703071711698 + 703071711699.

It is an arithmetic number, because the mean of its divisors is an integer number (703071711699).

Almost surely, 2^{1406143423397} is an apocalyptic number.

It is an amenable number.

1406143423397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406143423397 is an equidigital number, since it uses as much as digits as its factorization.

1406143423397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 1406143423397 in words is "one trillion, four hundred six billion, one hundred forty-three million, four hundred twenty-three thousand, three hundred ninety-seven".