1285474 has 4 divisors (see below), whose sum is σ = 1928214. Its totient is φ = 642736.

The previous prime is 1285469. The next prime is 1285481. The reversal of 1285474 is 4745821.

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

It can be written as a sum of positive squares in only one way, i.e., 1225449 + 60025 = 1107^2 + 245^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 14.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 321367 + ... + 321370.

2^1285474 is an apocalyptic number.

1285474 is a deficient number, since it is larger than the sum of its proper divisors (642740).

1285474 is an equidigital number, since it uses as much as digits as its factorization.

1285474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642739.

The product of its digits is 8960, while the sum is 31.

The square root of 1285474 is about 1133.7874580361. The cubic root of 1285474 is about 108.7312629013.

The spelling of 1285474 in words is "one million, two hundred eighty-five thousand, four hundred seventy-four".