1146078789 has 4 divisors (see below), whose sum is σ = 1528105056. Its totient is φ = 764052524.

The previous prime is 1146078779. The next prime is 1146078793. The reversal of 1146078789 is 9878706411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1146078789 - 2¹⁵ = 1146046021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146078709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191013129 + ... + 191013134.

It is an arithmetic number, because the mean of its divisors is an integer number (382026264).

Almost surely, 2^1146078789 is an apocalyptic number.

It is an amenable number.

1146078789 is a deficient number, since it is larger than the sum of its proper divisors (382026267).

1146078789 is an equidigital number, since it uses as much as digits as its factorization.

1146078789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382026266.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 1146078789 is about 33853.7854456485. The cubic root of 1146078789 is about 1046.4974111458.

The spelling of 1146078789 in words is "one billion, one hundred forty-six million, seventy-eight thousand, seven hundred eighty-nine".