1273215 has 16 divisors (see below), whose sum is σ = 2157408. Its totient is φ = 638976.

The previous prime is 1273213. The next prime is 1273231. The reversal of 1273215 is 5123721.

It is not a de Polignac number, because 1273215 - 2¹ = 1273213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1273191 and 1273200.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2242 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (134838).

2^1273215 is an apocalyptic number.

1273215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1273215 is a deficient number, since it is larger than the sum of its proper divisors (884193).

1273215 is a wasteful number, since it uses less digits than its factorization.

1273215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018.

The product of its digits is 420, while the sum is 21.

The square root of 1273215 is about 1128.3682909405. The cubic root of 1273215 is about 108.3845175620.

Adding to 1273215 its reverse (5123721), we get a palindrome (6396936).

The spelling of 1273215 in words is "one million, two hundred seventy-three thousand, two hundred fifteen".