1188151 has 2 divisors, whose sum is σ = 1188152. Its totient is φ = 1188150.

The previous prime is 1188149. The next prime is 1188167. The reversal of 1188151 is 1518811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1188151 - 2¹ = 1188149 is a prime.

Together with 1188149, it forms a pair of twin primes.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1188851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594075 + 594076.

It is an arithmetic number, because the mean of its divisors is an integer number (594076).

2^1188151 is an apocalyptic number.

1188151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188151 is an equidigital number, since it uses as much as digits as its factorization.

1188151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 25.

The square root of 1188151 is about 1090.0233942444. The cubic root of 1188151 is about 105.9149370969.

The spelling of 1188151 in words is "one million, one hundred eighty-eight thousand, one hundred fifty-one".