1261026 has 48 divisors (see below), whose sum is σ = 3125304. Its totient is φ = 364032.

The previous prime is 1260991. The next prime is 1261033. The reversal of 1261026 is 6201621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 720801 + 540225 = 849^2 + 735^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3820 + ... + 4136.

2^1261026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562652).

1261026 is an abundant number, since it is smaller than the sum of its proper divisors (1864278).

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

1261026 is a wasteful number, since it uses less digits than its factorization.

1261026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1261026 is about 1122.9541397582. The cubic root of 1261026 is about 108.0375383913.

Adding to 1261026 its reverse (6201621), we get a palindrome (7462647).

The spelling of 1261026 in words is "one million, two hundred sixty-one thousand, twenty-six".