1284352851 has 4 divisors (see below), whose sum is σ = 1712470472. Its totient is φ = 856235232.

The previous prime is 1284352837. The next prime is 1284352871. The reversal of 1284352851 is 1582534821.

1284352851 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1284352851 - 2⁵ = 1284352819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284352801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214058806 + ... + 214058811.

It is an arithmetic number, because the mean of its divisors is an integer number (428117618).

Almost surely, 2^1284352851 is an apocalyptic number.

1284352851 is a deficient number, since it is larger than the sum of its proper divisors (428117621).

1284352851 is an equidigital number, since it uses as much as digits as its factorization.

1284352851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428117620.

The product of its digits is 76800, while the sum is 39.

The square root of 1284352851 is about 35837.8689517108. The cubic root of 1284352851 is about 1086.9964307229.

The spelling of 1284352851 in words is "one billion, two hundred eighty-four million, three hundred fifty-two thousand, eight hundred fifty-one".