1245808 has 10 divisors (see below), whose sum is σ = 2413784. Its totient is φ = 622896.

The previous prime is 1245799. The next prime is 1245817. The reversal of 1245808 is 8085421.

It is an interprime number because it is at equal distance from previous prime (1245799) and next prime (1245817).

It is a congruent number.

It is an unprimeable number.

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, 38916 + ... + 38947.

2^1245808 is an apocalyptic number.

It is an amenable number.

1245808 is a deficient number, since it is larger than the sum of its proper divisors (1167976).

1245808 is an equidigital number, since it uses as much as digits as its factorization.

1245808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77871 (or 77865 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1245808 is about 1116.1576949517. The cubic root of 1245808 is about 107.6011811021.

The spelling of 1245808 in words is "one million, two hundred forty-five thousand, eight hundred eight".