1231848 has 40 divisors (see below), whose sum is σ = 3452130. Its totient is φ = 410400.

The previous prime is 1231843. The next prime is 1231859. The reversal of 1231848 is 8481321.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 26244 = 1098^2 + 162^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1231843) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 303 + ... + 1598.

2^1231848 is an apocalyptic number.

1231848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1231848 is an abundant number, since it is smaller than the sum of its proper divisors (2220282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231848 is a wasteful number, since it uses less digits than its factorization.

1231848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1906 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1231848 is about 1109.8864806817. The cubic root of 1231848 is about 107.1977592908.

The spelling of 1231848 in words is "one million, two hundred thirty-one thousand, eight hundred forty-eight".