1245338 has 4 divisors (see below), whose sum is σ = 1868010. Its totient is φ = 622668.

The previous prime is 1245331. The next prime is 1245353. The reversal of 1245338 is 8335421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8335421 = 43 ⋅193847.

It can be written as a sum of positive squares in only one way, i.e., 935089 + 310249 = 967^2 + 557^2 .

It is not an unprimeable number, because it can be changed into a prime (1245331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311333 + ... + 311336.

2^1245338 is an apocalyptic number.

1245338 is a deficient number, since it is larger than the sum of its proper divisors (622672).

1245338 is an equidigital number, since it uses as much as digits as its factorization.

1245338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622671.

The product of its digits is 2880, while the sum is 26.

The square root of 1245338 is about 1115.9471313642. The cubic root of 1245338 is about 107.5876480065.

The spelling of 1245338 in words is "one million, two hundred forty-five thousand, three hundred thirty-eight".