1243130 has 48 divisors (see below), whose sum is σ = 2708640. Its totient is φ = 409248.

The previous prime is 1243129. The next prime is 1243133. The reversal of 1243130 is 313421.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1243133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21041 + ... + 21099.

It is an arithmetic number, because the mean of its divisors is an integer number (56430).

2^1243130 is an apocalyptic number.

1243130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243130 is an abundant number, since it is smaller than the sum of its proper divisors (1465510).

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

1243130 is a wasteful number, since it uses less digits than its factorization.

1243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1243130 is about 1114.9573982893. The cubic root of 1243130 is about 107.5240256378.

Adding to 1243130 its reverse (313421), we get a palindrome (1556551).

The spelling of 1243130 in words is "one million, two hundred forty-three thousand, one hundred thirty".