1520207612 has 24 divisors (see below), whose sum is σ = 3316817280. Its totient is φ = 592288560.

The previous prime is 1520207593. The next prime is 1520207617. The reversal of 1520207612 is 2167020251.

It is a super-2 number, since 2×1520207612² = 4622062367165485088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520207617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2467562 + ... + 2468177.

It is an arithmetic number, because the mean of its divisors is an integer number (138200720).

Almost surely, 2^1520207612 is an apocalyptic number.

It is an amenable number.

1520207612 is an abundant number, since it is smaller than the sum of its proper divisors (1796609668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520207612 is a wasteful number, since it uses less digits than its factorization.

1520207612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935761 (or 4935759 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1520207612 is about 38989.8398560445. The cubic root of 1520207612 is about 1149.8317616523.

Adding to 1520207612 its reverse (2167020251), we get a palindrome (3687227863).

The spelling of 1520207612 in words is "one billion, five hundred twenty million, two hundred seven thousand, six hundred twelve".