1290248 has 8 divisors (see below), whose sum is σ = 2419230. Its totient is φ = 645120.

The previous prime is 1290209. The next prime is 1290257. The reversal of 1290248 is 8420921.

It can be written as a sum of positive squares in only one way, i.e., 1162084 + 128164 = 1078^2 + 358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 80633 + ... + 80648.

2^1290248 is an apocalyptic number.

It is an amenable number.

1290248 is a deficient number, since it is larger than the sum of its proper divisors (1128982).

1290248 is a wasteful number, since it uses less digits than its factorization.

1290248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161287 (or 161283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1290248 is about 1135.8908398257. The cubic root of 1290248 is about 108.8656988578.

The spelling of 1290248 in words is "one million, two hundred ninety thousand, two hundred forty-eight".