1273212 has 24 divisors (see below), whose sum is σ = 3301200. Its totient is φ = 424368.

The previous prime is 1273199. The next prime is 1273213. The reversal of 1273212 is 2123721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273213) 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, 5787 + ... + 6002.

It is an arithmetic number, because the mean of its divisors is an integer number (137550).

2^1273212 is an apocalyptic number.

1273212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1273212 is an abundant number, since it is smaller than the sum of its proper divisors (2027988).

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

1273212 is a wasteful number, since it uses less digits than its factorization.

1273212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11802 (or 11794 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 1273212 is about 1128.3669615865. The cubic root of 1273212 is about 108.3844324353.

Adding to 1273212 its reverse (2123721), we get a palindrome (3396933).

It can be divided in two parts, 1273 and 212, that added together give a triangular number (1485 = T₅₄).

The spelling of 1273212 in words is "one million, two hundred seventy-three thousand, two hundred twelve".