1521212 has 36 divisors (see below), whose sum is σ = 3351600. Its totient is φ = 591360.

The previous prime is 1521209. The next prime is 1521217. The reversal of 1521212 is 2121251.

It is a Harshad number since it is a multiple of its sum of digits (14).

1521212 is a modest number, since divided by 1212 gives 152 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3164 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (93100).

2^1521212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1521212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675800).

1521212 is an abundant number, since it is smaller than the sum of its proper divisors (1830388).

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

1521212 is a wasteful number, since it uses less digits than its factorization.

1521212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 469 counting only the distinct ones).

The product of its digits is 40, while the sum is 14.

The square root of 1521212 is about 1233.3742335561. The cubic root of 1521212 is about 115.0084933866.

Adding to 1521212 its reverse (2121251), we get a palindrome (3642463).

The spelling of 1521212 in words is "one million, five hundred twenty-one thousand, two hundred twelve".