1268951 has 4 divisors (see below), whose sum is σ = 1273272. Its totient is φ = 1264632.

The previous prime is 1268947. The next prime is 1268963. The reversal of 1268951 is 1598621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1598621 = 149 ⋅10729.

It is a cyclic number.

It is not a de Polignac number, because 1268951 - 2² = 1268947 is a prime.

It is a super-2 number, since 2×1268951² = 3220473280802, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (4320) is a multiple of the sum of its prime divisors (4320).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268921) by changing a digit.

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, 1685 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (318318).

2^1268951 is an apocalyptic number.

1268951 is a deficient number, since it is larger than the sum of its proper divisors (4321).

1268951 is an equidigital number, since it uses as much as digits as its factorization.

1268951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320.

The product of its digits is 4320, while the sum is 32.

The square root of 1268951 is about 1126.4772523225. The cubic root of 1268951 is about 108.2633889073.

The spelling of 1268951 in words is "one million, two hundred sixty-eight thousand, nine hundred fifty-one".