1406663129 has 2 divisors, whose sum is σ = 1406663130. Its totient is φ = 1406663128.

The previous prime is 1406663051. The next prime is 1406663143. The reversal of 1406663129 is 9213666041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748843225 + 657819904 = 27365^2 + 25648^2 .

It is an emirp because it is prime and its reverse (9213666041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406663129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1406663092 and 1406663101.

It is not a weakly prime, because it can be changed into another prime (1406663149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703331564 + 703331565.

It is an arithmetic number, because the mean of its divisors is an integer number (703331565).

Almost surely, 2^1406663129 is an apocalyptic number.

It is an amenable number.

1406663129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406663129 is an equidigital number, since it uses as much as digits as its factorization.

1406663129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1406663129 is about 37505.5079821618. The cubic root of 1406663129 is about 1120.4608883868.

The spelling of 1406663129 in words is "one billion, four hundred six million, six hundred sixty-three thousand, one hundred twenty-nine".