1268136 has 80 divisors (see below), whose sum is σ = 3775200. Its totient is φ = 396576.

The previous prime is 1268119. The next prime is 1268143. The reversal of 1268136 is 6318621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12261 + ... + 12363.

It is an arithmetic number, because the mean of its divisors is an integer number (47190).

2^1268136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1887600).

1268136 is an abundant number, since it is smaller than the sum of its proper divisors (2507064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1268136 is a wasteful number, since it uses less digits than its factorization.

1268136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 127 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1268136 is about 1126.1154470124. The cubic root of 1268136 is about 108.2402060950.

The spelling of 1268136 in words is "one million, two hundred sixty-eight thousand, one hundred thirty-six".