1272230 has 32 divisors (see below), whose sum is σ = 2449440. Its totient is φ = 474880.

The previous prime is 1272223. The next prime is 1272233. The reversal of 1272230 is 322721.

It is a junction number, because it is equal to n+sod(n) for n = 1272199 and 1272208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11837 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (76545).

2^1272230 is an apocalyptic number.

1272230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272230 is a deficient number, since it is larger than the sum of its proper divisors (1177210).

1272230 is a wasteful number, since it uses less digits than its factorization.

1272230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1272230 is about 1127.9317355230. The cubic root of 1272230 is about 108.3565604371.

Adding to 1272230 its reverse (322721), we get a palindrome (1594951).

The spelling of 1272230 in words is "one million, two hundred seventy-two thousand, two hundred thirty".