1405124417 has 2 divisors, whose sum is σ = 1405124418. Its totient is φ = 1405124416.

The previous prime is 1405124411. The next prime is 1405124437. The reversal of 1405124417 is 7144215041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1404075841 + 1048576 = 37471^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405124417 - 2¹⁰ = 1405123393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1405124417.

It is not a weakly prime, because it can be changed into another prime (1405124411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702562208 + 702562209.

It is an arithmetic number, because the mean of its divisors is an integer number (702562209).

Almost surely, 2^1405124417 is an apocalyptic number.

It is an amenable number.

1405124417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405124417 is an equidigital number, since it uses as much as digits as its factorization.

1405124417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 1405124417 is about 37484.9892223541. The cubic root of 1405124417 is about 1120.0521917111.

Adding to 1405124417 its reverse (7144215041), we get a palindrome (8549339458).

The spelling of 1405124417 in words is "one billion, four hundred five million, one hundred twenty-four thousand, four hundred seventeen".