1212516 has 48 divisors (see below), whose sum is σ = 3203200. Its totient is φ = 396576.

The previous prime is 1212487. The next prime is 1212517. The reversal of 1212516 is 6152121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1212517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11070 + ... + 11178.

2^1212516 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 1212516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601600).

1212516 is an abundant number, since it is smaller than the sum of its proper divisors (1990684).

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

1212516 is a wasteful number, since it uses less digits than its factorization.

1212516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 217 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 1212516 is about 1101.1430424790. The cubic root of 1212516 is about 106.6340308143.

Adding to 1212516 its reverse (6152121), we get a palindrome (7364637).

It can be divided in two parts, 1212 and 516, that added together give a cube (1728 = 12³).

The spelling of 1212516 in words is "one million, two hundred twelve thousand, five hundred sixteen".