1267135 has 4 divisors (see below), whose sum is σ = 1520568. Its totient is φ = 1013704.

The previous prime is 1267127. The next prime is 1267151. The reversal of 1267135 is 5317621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5317621 = 197 ⋅26993.

It is a cyclic number.

It is not a de Polignac number, because 1267135 - 2³ = 1267127 is a prime.

It is a super-2 number, since 2×1267135² = 3211262216450, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126709 + ... + 126718.

It is an arithmetic number, because the mean of its divisors is an integer number (380142).

2^1267135 is an apocalyptic number.

1267135 is a deficient number, since it is larger than the sum of its proper divisors (253433).

1267135 is an equidigital number, since it uses as much as digits as its factorization.

1267135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253432.

The product of its digits is 1260, while the sum is 25.

The square root of 1267135 is about 1125.6709110570. The cubic root of 1267135 is about 108.2117188856.

The spelling of 1267135 in words is "one million, two hundred sixty-seven thousand, one hundred thirty-five".