1146638079 has 8 divisors (see below), whose sum is σ = 1698723120. Its totient is φ = 764425368.

The previous prime is 1146638071. The next prime is 1146638089. The reversal of 1146638079 is 9708366411.

It is a happy number.

1146638079 is a `hidden beast` number, since 1 + 1 + 4 + 6 + 638 + 0 + 7 + 9 = 666.

It is not a de Polignac number, because 1146638079 - 2³ = 1146638071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146638071) 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, 21234012 + ... + 21234065.

It is an arithmetic number, because the mean of its divisors is an integer number (212340390).

Almost surely, 2^1146638079 is an apocalyptic number.

1146638079 is a deficient number, since it is larger than the sum of its proper divisors (552085041).

1146638079 is an equidigital number, since it uses as much as digits as its factorization.

1146638079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42468086 (or 42468080 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1146638079 is about 33862.0448142164. The cubic root of 1146638079 is about 1046.6676147886.

The spelling of 1146638079 in words is "one billion, one hundred forty-six million, six hundred thirty-eight thousand, seventy-nine".