1267015 has 8 divisors (see below), whose sum is σ = 1600560. Its totient is φ = 960192.

The previous prime is 1267009. The next prime is 1267043. The reversal of 1267015 is 5107621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1267015 is a prime.

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, 6574 + ... + 6763.

It is an arithmetic number, because the mean of its divisors is an integer number (200070).

2^1267015 is an apocalyptic number.

1267015 is a deficient number, since it is larger than the sum of its proper divisors (333545).

1267015 is a wasteful number, since it uses less digits than its factorization.

1267015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13361.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1267015 is about 1125.6176082489. The cubic root of 1267015 is about 108.2083028286.

Subtracting 1267015 from its reverse (5107621), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1267015 in words is "one million, two hundred sixty-seven thousand, fifteen".