1406565401 has 2 divisors, whose sum is σ = 1406565402. Its totient is φ = 1406565400.

The previous prime is 1406565379. The next prime is 1406565443. The reversal of 1406565401 is 1045656041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1293121600 + 113443801 = 35960^2 + 10651^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406565401 - 2²² = 1402371097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1406565481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703282700 + 703282701.

It is an arithmetic number, because the mean of its divisors is an integer number (703282701).

Almost surely, 2^1406565401 is an apocalyptic number.

It is an amenable number.

1406565401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406565401 is an equidigital number, since it uses as much as digits as its factorization.

1406565401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1406565401 is about 37504.2051108939. The cubic root of 1406565401 is about 1120.4349397581.

The spelling of 1406565401 in words is "one billion, four hundred six million, five hundred sixty-five thousand, four hundred one".