1209148 has 6 divisors (see below), whose sum is σ = 2116016. Its totient is φ = 604572.

The previous prime is 1209139. The next prime is 1209151. The reversal of 1209148 is 8419021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151140 + ... + 151147.

2^1209148 is an apocalyptic number.

It is an amenable number.

1209148 is a deficient number, since it is larger than the sum of its proper divisors (906868).

1209148 is a wasteful number, since it uses less digits than its factorization.

1209148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302291 (or 302289 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1209148 is about 1099.6126590759. The cubic root of 1209148 is about 106.5352069747.

The spelling of 1209148 in words is "one million, two hundred nine thousand, one hundred forty-eight".