1264146 has 32 divisors (see below), whose sum is σ = 2869440. Its totient is φ = 368064.

The previous prime is 1264129. The next prime is 1264177. The reversal of 1264146 is 6414621.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056 + ... + 1908.

It is an arithmetic number, because the mean of its divisors is an integer number (89670).

2^1264146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434720).

1264146 is an abundant number, since it is smaller than the sum of its proper divisors (1605294).

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

1264146 is a wasteful number, since it uses less digits than its factorization.

1264146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890.

The product of its digits is 1152, while the sum is 24.

The square root of 1264146 is about 1124.3424745157. The cubic root of 1264146 is about 108.1265662954.

Adding to 1264146 its reverse (6414621), we get a palindrome (7678767).

The spelling of 1264146 in words is "one million, two hundred sixty-four thousand, one hundred forty-six".