1218974 has 4 divisors (see below), whose sum is σ = 1828464. Its totient is φ = 609486.

The previous prime is 1218953. The next prime is 1218989. The reversal of 1218974 is 4798121.

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

It is a super-2 number, since 2×1218974² = 2971795225352, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1218974.

It is a congruent number.

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, 304742 + ... + 304745.

It is an arithmetic number, because the mean of its divisors is an integer number (457116).

2^1218974 is an apocalyptic number.

1218974 is a deficient number, since it is larger than the sum of its proper divisors (609490).

1218974 is an equidigital number, since it uses as much as digits as its factorization.

1218974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609489.

The product of its digits is 4032, while the sum is 32.

The square root of 1218974 is about 1104.0715556521. The cubic root of 1218974 is about 106.8230107479.

The spelling of 1218974 in words is "one million, two hundred eighteen thousand, nine hundred seventy-four".