1405500427 has 2 divisors, whose sum is σ = 1405500428. Its totient is φ = 1405500426.

The previous prime is 1405500409. The next prime is 1405500443. The reversal of 1405500427 is 7240055041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1405500427 - 2¹¹ = 1405498379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1405500395 and 1405500404.

It is not a weakly prime, because it can be changed into another prime (1405500487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702750213 + 702750214.

It is an arithmetic number, because the mean of its divisors is an integer number (702750214).

Almost surely, 2^1405500427 is an apocalyptic number.

1405500427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405500427 is an equidigital number, since it uses as much as digits as its factorization.

1405500427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 1405500427 is about 37490.0043611627. The cubic root of 1405500427 is about 1120.1520911123.

Adding to 1405500427 its reverse (7240055041), we get a palindrome (8645555468).

The spelling of 1405500427 in words is "one billion, four hundred five million, five hundred thousand, four hundred twenty-seven".