1520422005 has 32 divisors (see below), whose sum is σ = 2527176960. Its totient is φ = 779627520.

The previous prime is 1520422003. The next prime is 1520422031. The reversal of 1520422005 is 5002240251.

It is a happy number.

It is not a de Polignac number, because 1520422005 - 2¹ = 1520422003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520422003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97584 + ... + 112086.

It is an arithmetic number, because the mean of its divisors is an integer number (78974280).

Almost surely, 2^1520422005 is an apocalyptic number.

1520422005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1520422005 is a deficient number, since it is larger than the sum of its proper divisors (1006754955).

1520422005 is a wasteful number, since it uses less digits than its factorization.

1520422005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14781.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1520422005 is about 38992.5891035720. The cubic root of 1520422005 is about 1149.8858122287.

Adding to 1520422005 its reverse (5002240251), we get a palindrome (6522662256).

The spelling of 1520422005 in words is "one billion, five hundred twenty million, four hundred twenty-two thousand, five".