1178398101 has 8 divisors (see below), whose sum is σ = 1607737120. Its totient is φ = 767328912.

The previous prime is 1178398079. The next prime is 1178398159. The reversal of 1178398101 is 1018938711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1178398101 - 2⁶ = 1178398037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1178398101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178398171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4567306 + ... + 4567563.

It is an arithmetic number, because the mean of its divisors is an integer number (200967140).

Almost surely, 2^1178398101 is an apocalyptic number.

It is an amenable number.

1178398101 is a deficient number, since it is larger than the sum of its proper divisors (429339019).

1178398101 is an equidigital number, since it uses as much as digits as its factorization.

1178398101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134915.

The product of its (nonzero) digits is 12096, while the sum is 39.

The square root of 1178398101 is about 34327.8036145629. The cubic root of 1178398101 is about 1056.2434074679.

The spelling of 1178398101 in words is "one billion, one hundred seventy-eight million, three hundred ninety-eight thousand, one hundred one".