1148890 has 8 divisors (see below), whose sum is σ = 2068020. Its totient is φ = 459552.

The previous prime is 1148879. The next prime is 1148921. The reversal of 1148890 is 988411.

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 1849 = 1071^2 + 43^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 57435 + ... + 57454.

2^1148890 is an apocalyptic number.

1148890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1148890 is a deficient number, since it is larger than the sum of its proper divisors (919130).

1148890 is a wasteful number, since it uses less digits than its factorization.

1148890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114896.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1148890 is about 1071.8628643628. The cubic root of 1148890 is about 104.7352361935.

The spelling of 1148890 in words is "one million, one hundred forty-eight thousand, eight hundred ninety".