1203520 has 28 divisors (see below), whose sum is σ = 2866644. Its totient is φ = 481280.

The previous prime is 1203509. The next prime is 1203533. The reversal of 1203520 is 253021.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 719104 = 696^2 + 848^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1203520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1561 + ... + 2200.

2^1203520 is an apocalyptic number.

1203520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203520 is an abundant number, since it is smaller than the sum of its proper divisors (1663124).

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

1203520 is an equidigital number, since it uses as much as digits as its factorization.

1203520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778 (or 3768 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1203520 is about 1097.0505913585. The cubic root of 1203520 is about 106.3696598815.

Adding to 1203520 its reverse (253021), we get a palindrome (1456541).

The spelling of 1203520 in words is "one million, two hundred three thousand, five hundred twenty".