1245562 has 4 divisors (see below), whose sum is σ = 1868346. Its totient is φ = 622780.

The previous prime is 1245557. The next prime is 1245589. The reversal of 1245562 is 2655421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2655421 = 19 ⋅139759.

It can be written as a sum of positive squares in only one way, i.e., 1100401 + 145161 = 1049^2 + 381^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311389 + ... + 311392.

2^1245562 is an apocalyptic number.

1245562 is a deficient number, since it is larger than the sum of its proper divisors (622784).

1245562 is an equidigital number, since it uses as much as digits as its factorization.

1245562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622783.

The product of its digits is 2400, while the sum is 25.

The square root of 1245562 is about 1116.0474900290. The cubic root of 1245562 is about 107.5940982469.

The spelling of 1245562 in words is "one million, two hundred forty-five thousand, five hundred sixty-two".