1231048 has 64 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 456192.

The previous prime is 1231039. The next prime is 1231049. The reversal of 1231048 is 8401321.

1231048 is nontrivially palindromic in base 12.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1231049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13788 + ... + 13876.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2^1231048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512000).

1231048 is an abundant number, since it is smaller than the sum of its proper divisors (1792952).

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

1231048 is a wasteful number, since it uses less digits than its factorization.

1231048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1231048 is about 1109.5260249314. The cubic root of 1231048 is about 107.1745484242.

Adding to 1231048 its reverse (8401321), we get a palindrome (9632369).

The spelling of 1231048 in words is "one million, two hundred thirty-one thousand, forty-eight".