1185261 has 24 divisors (see below), whose sum is σ = 2008224. Its totient is φ = 614880.

The previous prime is 1185241. The next prime is 1185281. The reversal of 1185261 is 1625811.

It is an interprime number because it is at equal distance from previous prime (1185241) and next prime (1185281).

It is not a de Polignac number, because 1185261 - 2⁹ = 1184749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185241) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1251 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (83676).

2^1185261 is an apocalyptic number.

1185261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1185261 is a deficient number, since it is larger than the sum of its proper divisors (822963).

1185261 is a wasteful number, since it uses less digits than its factorization.

1185261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 754 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 1185261 is about 1088.6969275239. The cubic root of 1185261 is about 105.8289932845.

The spelling of 1185261 in words is "one million, one hundred eighty-five thousand, two hundred sixty-one".