1188261 has 12 divisors (see below), whose sum is σ = 1772160. Its totient is φ = 766440.

The previous prime is 1188259. The next prime is 1188263. The reversal of 1188261 is 1628811.

It is an interprime number because it is at equal distance from previous prime (1188259) and next prime (1188263).

It is not a de Polignac number, because 1188261 - 2¹ = 1188259 is a prime.

It is a super-3 number, since 3×1188261³ = 5033345991459070743, which contains 333 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188263) 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, 1851 + ... + 2408.

It is an arithmetic number, because the mean of its divisors is an integer number (147680).

2^1188261 is an apocalyptic number.

It is an amenable number.

1188261 is a deficient number, since it is larger than the sum of its proper divisors (583899).

1188261 is a wasteful number, since it uses less digits than its factorization.

1188261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296 (or 4293 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 1188261 is about 1090.0738507092. The cubic root of 1188261 is about 105.9182055602.

The spelling of 1188261 in words is "one million, one hundred eighty-eight thousand, two hundred sixty-one".