1267215 has 8 divisors (see below), whose sum is σ = 2027568. Its totient is φ = 675840.

The previous prime is 1267199. The next prime is 1267223. The reversal of 1267215 is 5127621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1267215 - 2⁴ = 1267199 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42226 + ... + 42255.

It is an arithmetic number, because the mean of its divisors is an integer number (253446).

2^1267215 is an apocalyptic number.

1267215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1267215 is a deficient number, since it is larger than the sum of its proper divisors (760353).

1267215 is an equidigital number, since it uses as much as digits as its factorization.

1267215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84489.

The product of its digits is 840, while the sum is 24.

The square root of 1267215 is about 1125.7064448603. The cubic root of 1267215 is about 108.2139961372.

The spelling of 1267215 in words is "one million, two hundred sixty-seven thousand, two hundred fifteen".