1214520 has 64 divisors (see below), whose sum is σ = 3780000. Its totient is φ = 311808.

The previous prime is 1214519. The next prime is 1214533. The reversal of 1214520 is 254121.

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 1214520.

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 15 ways as a sum of consecutive naturals, for example, 3306 + ... + 3654.

2^1214520 is an apocalyptic number.

1214520 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 1214520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1890000).

1214520 is an abundant number, since it is smaller than the sum of its proper divisors (2565480).

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

1214520 is a wasteful number, since it uses less digits than its factorization.

1214520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 388 counting only the distinct ones).

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

The square root of 1214520 is about 1102.0526303222. The cubic root of 1214520 is about 106.6927453597.

Adding to 1214520 its reverse (254121), we get a palindrome (1468641).

The spelling of 1214520 in words is "one million, two hundred fourteen thousand, five hundred twenty".