1284130 has 8 divisors (see below), whose sum is σ = 2311452. Its totient is φ = 513648.

The previous prime is 1284083. The next prime is 1284131. The reversal of 1284130 is 314821.

It can be written as a sum of positive squares in 2 ways, for example, as 1283689 + 441 = 1133^2 + 21^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1284098 and 1284107.

It is not an unprimeable number, because it can be changed into a prime (1284131) 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, 64197 + ... + 64216.

2^1284130 is an apocalyptic number.

1284130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1284130 is a deficient number, since it is larger than the sum of its proper divisors (1027322).

1284130 is a wasteful number, since it uses less digits than its factorization.

1284130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128420.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1284130 is about 1133.1945993518. The cubic root of 1284130 is about 108.6933558008.

Adding to 1284130 its reverse (314821), we get a palindrome (1598951).

The spelling of 1284130 in words is "one million, two hundred eighty-four thousand, one hundred thirty".