2151287285 has 8 divisors (see below), whose sum is σ = 2950336896. Its totient is φ = 1475168400.

The previous prime is 2151287269. The next prime is 2151287317. The reversal of 2151287285 is 5827821512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2151287285 - 2⁴ = 2151287269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30732641 + ... + 30732710.

It is an arithmetic number, because the mean of its divisors is an integer number (368792112).

Almost surely, 2^2151287285 is an apocalyptic number.

It is an amenable number.

2151287285 is a deficient number, since it is larger than the sum of its proper divisors (799049611).

2151287285 is an equidigital number, since it uses as much as digits as its factorization.

2151287285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61465363.

The product of its digits is 89600, while the sum is 41.

The square root of 2151287285 is about 46381.9715514552. The cubic root of 2151287285 is about 1290.9204185788.

The spelling of 2151287285 in words is "two billion, one hundred fifty-one million, two hundred eighty-seven thousand, two hundred eighty-five".