1187278607 has 12 divisors (see below), whose sum is σ = 1274709240. Its totient is φ = 1104946128.

The previous prime is 1187278591. The next prime is 1187278613. The reversal of 1187278607 is 7068727811.

It is not a de Polignac number, because 1187278607 - 2⁴ = 1187278591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187278307) 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, 10757 + ... + 49902.

It is an arithmetic number, because the mean of its divisors is an integer number (106225770).

Almost surely, 2^1187278607 is an apocalyptic number.

1187278607 is a deficient number, since it is larger than the sum of its proper divisors (87430633).

1187278607 is an equidigital number, since it uses as much as digits as its factorization.

1187278607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60742 (or 60719 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 47.

The square root of 1187278607 is about 34456.9094232202. The cubic root of 1187278607 is about 1058.8900827321.

The spelling of 1187278607 in words is "one billion, one hundred eighty-seven million, two hundred seventy-eight thousand, six hundred seven".