1521085875 has 16 divisors (see below), whose sum is σ = 2531087520. Its totient is φ = 811245600.

The previous prime is 1521085871. The next prime is 1521085901. The reversal of 1521085875 is 5785801251.

1521085875 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1521085875 - 2² = 1521085871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1521085871) 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 15 ways as a sum of consecutive naturals, for example, 2027740 + ... + 2028489.

It is an arithmetic number, because the mean of its divisors is an integer number (158192970).

Almost surely, 2^1521085875 is an apocalyptic number.

1521085875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1521085875 is a deficient number, since it is larger than the sum of its proper divisors (1010001645).

1521085875 is an equidigital number, since it uses as much as digits as its factorization.

1521085875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056247 (or 4056237 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 42.

The square root of 1521085875 is about 39001.1009459989. The cubic root of 1521085875 is about 1150.0531481423.

The spelling of 1521085875 in words is "one billion, five hundred twenty-one million, eighty-five thousand, eight hundred seventy-five".