1102520 has 32 divisors (see below), whose sum is σ = 2542320. Its totient is φ = 430080.

The previous prime is 1102483. The next prime is 1102523. The reversal of 1102520 is 252011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400 + ... + 2040.

2^1102520 is an apocalyptic number.

1102520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271160).

1102520 is an abundant number, since it is smaller than the sum of its proper divisors (1439800).

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

1102520 is a wasteful number, since it uses less digits than its factorization.

1102520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1102520 is about 1050.0095237663. The cubic root of 1102520 is about 103.3067800891.

Subtracting from 1102520 its product of nonzero digits (20), we obtain a square (1102500 = 1050²).

Adding to 1102520 its reverse (252011), we get a palindrome (1354531).

The spelling of 1102520 in words is "one million, one hundred two thousand, five hundred twenty".