1268651 has 8 divisors (see below), whose sum is σ = 1304160. Its totient is φ = 1233792.

The previous prime is 1268633. The next prime is 1268669. The reversal of 1268651 is 1568621.

It is a happy number.

1268651 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (1268633) and next prime (1268669).

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

It is a cyclic number.

It is not a de Polignac number, because 1268651 - 2¹⁴ = 1252267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268621) 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 7 ways as a sum of consecutive naturals, for example, 11171 + ... + 11283.

It is an arithmetic number, because the mean of its divisors is an integer number (163020).

2^1268651 is an apocalyptic number.

1268651 is a deficient number, since it is larger than the sum of its proper divisors (35509).

1268651 is a wasteful number, since it uses less digits than its factorization.

1268651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its digits is 2880, while the sum is 29.

The square root of 1268651 is about 1126.3440859702. The cubic root of 1268651 is about 108.2548565115.

It can be divided in two parts, 126 and 8651, that multiplied together give a triangular number (1090026 = T₁₄₇₆).

The spelling of 1268651 in words is "one million, two hundred sixty-eight thousand, six hundred fifty-one".