1187107 has 2 divisors, whose sum is σ = 1187108. Its totient is φ = 1187106.

The previous prime is 1187089. The next prime is 1187111. The reversal of 1187107 is 7017811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1187107 - 2¹⁵ = 1154339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1187117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593553 + 593554.

It is an arithmetic number, because the mean of its divisors is an integer number (593554).

2^1187107 is an apocalyptic number.

1187107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187107 is an equidigital number, since it uses as much as digits as its factorization.

1187107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 25.

The square root of 1187107 is about 1089.5444001967. The cubic root of 1187107 is about 105.8839063619.

It can be divided in two parts, 118 and 7107, that added together give a square (7225 = 85²).

The spelling of 1187107 in words is "one million, one hundred eighty-seven thousand, one hundred seven".