1285234 has 16 divisors (see below), whose sum is σ = 2066688. Its totient is φ = 597312.

The previous prime is 1285231. The next prime is 1285237. The reversal of 1285234 is 4325821.

It is an interprime number because it is at equal distance from previous prime (1285231) and next prime (1285237).

It is a junction number, because it is equal to n+sod(n) for n = 1285199 and 1285208.

It is not an unprimeable number, because it can be changed into a prime (1285231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319 + ... + 3685.

It is an arithmetic number, because the mean of its divisors is an integer number (129168).

2^1285234 is an apocalyptic number.

1285234 is a deficient number, since it is larger than the sum of its proper divisors (781454).

1285234 is a wasteful number, since it uses less digits than its factorization.

1285234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 1920, while the sum is 25.

The square root of 1285234 is about 1133.6816131525. The cubic root of 1285234 is about 108.7244957147.

The spelling of 1285234 in words is "one million, two hundred eighty-five thousand, two hundred thirty-four".