1405134671 has 2 divisors, whose sum is σ = 1405134672. Its totient is φ = 1405134670.

The previous prime is 1405134637. The next prime is 1405134707. The reversal of 1405134671 is 1764315041.

It is a weak prime.

It is an emirp because it is prime and its reverse (1764315041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405134671 - 2¹⁴ = 1405118287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405934671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702567335 + 702567336.

It is an arithmetic number, because the mean of its divisors is an integer number (702567336).

Almost surely, 2^1405134671 is an apocalyptic number.

1405134671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405134671 is an equidigital number, since it uses as much as digits as its factorization.

1405134671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1405134671 is about 37485.1259968537. The cubic root of 1405134671 is about 1120.0549162592.

The spelling of 1405134671 in words is "one billion, four hundred five million, one hundred thirty-four thousand, six hundred seventy-one".