1257212 has 12 divisors (see below), whose sum is σ = 2400216. Its totient is φ = 571440.

The previous prime is 1257209. The next prime is 1257229. The reversal of 1257212 is 2127521.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14243 + ... + 14330.

It is an arithmetic number, because the mean of its divisors is an integer number (200018).

2^1257212 is an apocalyptic number.

It is an amenable number.

1257212 is a deficient number, since it is larger than the sum of its proper divisors (1143004).

1257212 is a wasteful number, since it uses less digits than its factorization.

1257212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588 (or 28586 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 1257212 is about 1121.2546543939. The cubic root of 1257212 is about 107.9285077834.

It can be divided in two parts, 125 and 7212, that added together give a palindrome (7337).

The spelling of 1257212 in words is "one million, two hundred fifty-seven thousand, two hundred twelve".