1520445135 has 16 divisors (see below), whose sum is σ = 2653868160. Its totient is φ = 737185440.

The previous prime is 1520445077. The next prime is 1520445149. The reversal of 1520445135 is 5315440251.

It is not a de Polignac number, because 1520445135 - 2⁷ = 1520445007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4607245 + ... + 4607574.

It is an arithmetic number, because the mean of its divisors is an integer number (165866760).

Almost surely, 2^1520445135 is an apocalyptic number.

1520445135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1520445135 is a deficient number, since it is larger than the sum of its proper divisors (1133423025).

1520445135 is a wasteful number, since it uses less digits than its factorization.

1520445135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9214838.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1520445135 is about 38992.8856972653. The cubic root of 1520445135 is about 1149.8916432247.

Adding to 1520445135 its reverse (5315440251), we get a palindrome (6835885386).

The spelling of 1520445135 in words is "one billion, five hundred twenty million, four hundred forty-five thousand, one hundred thirty-five".