1261204 has 24 divisors (see below), whose sum is σ = 2605568. Its totient is φ = 522720.

The previous prime is 1261199. The next prime is 1261217. The reversal of 1261204 is 4021621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142 + ... + 1594.

2^1261204 is an apocalyptic number.

1261204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1302784).

1261204 is an abundant number, since it is smaller than the sum of its proper divisors (1344364).

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

1261204 is a wasteful number, since it uses less digits than its factorization.

1261204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1261204 is about 1123.0333922017. The cubic root of 1261204 is about 108.0426214948.

Adding to 1261204 its reverse (4021621), we get a palindrome (5282825).

It can be divided in two parts, 12 and 61204, that added together give a palindrome (61216).

The spelling of 1261204 in words is "one million, two hundred sixty-one thousand, two hundred four".