1275215 has 4 divisors (see below), whose sum is σ = 1530264. Its totient is φ = 1020168.

The previous prime is 1275203. The next prime is 1275227. The reversal of 1275215 is 5125721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1275203) and next prime (1275227).

It is a cyclic number.

It is not a de Polignac number, because 1275215 - 2⁴ = 1275199 is a prime.

It is a Duffinian number.

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, 127517 + ... + 127526.

It is an arithmetic number, because the mean of its divisors is an integer number (382566).

2^1275215 is an apocalyptic number.

1275215 is a deficient number, since it is larger than the sum of its proper divisors (255049).

1275215 is an equidigital number, since it uses as much as digits as its factorization.

1275215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255048.

The product of its digits is 700, while the sum is 23.

The square root of 1275215 is about 1129.2541786507. The cubic root of 1275215 is about 108.4412389673.

The spelling of 1275215 in words is "one million, two hundred seventy-five thousand, two hundred fifteen".