1243498 has 4 divisors (see below), whose sum is σ = 1865250. Its totient is φ = 621748.

The previous prime is 1243483. The next prime is 1243511. The reversal of 1243498 is 8943421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8943421 = 373 ⋅23977.

It can be written as a sum of positive squares in only one way, i.e., 1108809 + 134689 = 1053^2 + 367^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310873 + ... + 310876.

2^1243498 is an apocalyptic number.

1243498 is a deficient number, since it is larger than the sum of its proper divisors (621752).

1243498 is an equidigital number, since it uses as much as digits as its factorization.

1243498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621751.

The product of its digits is 6912, while the sum is 31.

The square root of 1243498 is about 1115.1224148048. The cubic root of 1243498 is about 107.5346345946.

The spelling of 1243498 in words is "one million, two hundred forty-three thousand, four hundred ninety-eight".