1147728079 has 8 divisors (see below), whose sum is σ = 1209325040. Its totient is φ = 1086250176.

The previous prime is 1147728053. The next prime is 1147728103. The reversal of 1147728079 is 9708277411.

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

It is a cyclic number.

It is not a de Polignac number, because 1147728079 - 2²³ = 1139339471 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 (1147723079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9612 + ... + 48865.

It is an arithmetic number, because the mean of its divisors is an integer number (151165630).

Almost surely, 2^1147728079 is an apocalyptic number.

1147728079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1147728079 is a deficient number, since it is larger than the sum of its proper divisors (61596961).

1147728079 is a wasteful number, since it uses less digits than its factorization.

1147728079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59529.

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 1147728079 is about 33878.1357072670. The cubic root of 1147728079 is about 1046.9991656086. Note that the first 3 decimals are identical.

The spelling of 1147728079 in words is "one billion, one hundred forty-seven million, seven hundred twenty-eight thousand, seventy-nine".