1146613789 has 4 divisors (see below), whose sum is σ = 1159497180. Its totient is φ = 1133730400.

The previous prime is 1146613781. The next prime is 1146613849. The reversal of 1146613789 is 9873166411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9873166411 = 823 ⋅11996557.

It can be written as a sum of positive squares in 2 ways, for example, as 102677689 + 1043936100 = 10133^2 + 32310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146613789 - 2³ = 1146613781 is a prime.

It is a super-2 number, since 2×1146613789² = 2629446362249873042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146613781) 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, 6441562 + ... + 6441739.

It is an arithmetic number, because the mean of its divisors is an integer number (289874295).

Almost surely, 2^1146613789 is an apocalyptic number.

It is an amenable number.

1146613789 is a deficient number, since it is larger than the sum of its proper divisors (12883391).

1146613789 is an equidigital number, since it uses as much as digits as its factorization.

1146613789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12883390.

The product of its digits is 217728, while the sum is 46.

The square root of 1146613789 is about 33861.6861511650. The cubic root of 1146613789 is about 1046.6602239834.

The spelling of 1146613789 in words is "one billion, one hundred forty-six million, six hundred thirteen thousand, seven hundred eighty-nine".