1261183 has 12 divisors (see below), whose sum is σ = 1585360. Its totient is φ = 982080.

The previous prime is 1261177. The next prime is 1261199. The reversal of 1261183 is 3811621.

It is not a de Polignac number, because 1261183 - 2¹³ = 1252991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103 + ... + 1591.

2^1261183 is an apocalyptic number.

1261183 is a deficient number, since it is larger than the sum of its proper divisors (324177).

1261183 is a wasteful number, since it uses less digits than its factorization.

1261183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1507 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 1261183 is about 1123.0240424853. The cubic root of 1261183 is about 108.0420218277.

It can be divided in two parts, 1261 and 183, that added together give a square (1444 = 38²).

The spelling of 1261183 in words is "one million, two hundred sixty-one thousand, one hundred eighty-three".