1212146 has 16 divisors (see below), whose sum is σ = 2044224. Its totient is φ = 534864.

The previous prime is 1212121. The next prime is 1212149. The reversal of 1212146 is 6412121.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (127764).

2^1212146 is an apocalyptic number.

1212146 is a deficient number, since it is larger than the sum of its proper divisors (832078).

1212146 is a wasteful number, since it uses less digits than its factorization.

1212146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its digits is 96, while the sum is 17.

The square root of 1212146 is about 1100.9750224233. The cubic root of 1212146 is about 106.6231832309.

Adding to 1212146 its reverse (6412121), we get a palindrome (7624267).

It can be divided in two parts, 12121 and 46, that added together give a cube (12167 = 23³).

The spelling of 1212146 in words is "one million, two hundred twelve thousand, one hundred forty-six".