1124520 has 32 divisors (see below), whose sum is σ = 3373920. Its totient is φ = 299840.

The previous prime is 1124509. The next prime is 1124531. The reversal of 1124520 is 254211.

It is an interprime number because it is at equal distance from previous prime (1124509) and next prime (1124531).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1124520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 4805.

It is an arithmetic number, because the mean of its divisors is an integer number (105435).

2^1124520 is an apocalyptic number.

1124520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1124520 is an abundant number, since it is smaller than the sum of its proper divisors (2249400).

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

1124520 is a wasteful number, since it uses less digits than its factorization.

1124520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9385 (or 9381 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1124520 is about 1060.4338734688. The cubic root of 1124520 is about 103.9893973412.

Adding to 1124520 its reverse (254211), we get a palindrome (1378731).

It can be divided in two parts, 11 and 24520, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 1124520 in words is "one million, one hundred twenty-four thousand, five hundred twenty".