1520120133 has 48 divisors (see below), whose sum is σ = 2600632320. Its totient is φ = 837581472.

The previous prime is 1520120113. The next prime is 1520120159. The reversal of 1520120133 is 3310210251.

1520120133 is a `hidden beast` number, since 1 + 520 + 12 + 0 + 133 = 666.

It is not a de Polignac number, because 1520120133 - 2²⁰ = 1519071557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520120113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210460 + ... + 217562.

It is an arithmetic number, because the mean of its divisors is an integer number (54179840).

Almost surely, 2^1520120133 is an apocalyptic number.

It is an amenable number.

1520120133 is a deficient number, since it is larger than the sum of its proper divisors (1080512187).

1520120133 is a wasteful number, since it uses less digits than its factorization.

1520120133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238 (or 7235 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1520120133 is about 38988.7180220125. The cubic root of 1520120133 is about 1149.8097058793.

Adding to 1520120133 its reverse (3310210251), we get a palindrome (4830330384).

The spelling of 1520120133 in words is "one billion, five hundred twenty million, one hundred twenty thousand, one hundred thirty-three".