1248140 has 24 divisors (see below), whose sum is σ = 2776032. Its totient is φ = 469760.

The previous prime is 1248119. The next prime is 1248151. The reversal of 1248140 is 418421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (115668).

2^1248140 is an apocalyptic number.

1248140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1248140 is an abundant number, since it is smaller than the sum of its proper divisors (1527892).

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

1248140 is a wasteful number, since it uses less digits than its factorization.

1248140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1248140 is about 1117.2018617958. The cubic root of 1248140 is about 107.6682779981.

It can be divided in two parts, 12481 and 40, that added together give a palindrome (12521).

The spelling of 1248140 in words is "one million, two hundred forty-eight thousand, one hundred forty".