1145406789 has 12 divisors (see below), whose sum is σ = 1654875456. Its totient is φ = 763420392.

The previous prime is 1145406767. The next prime is 1145406793. The reversal of 1145406789 is 9876045411.

It is not a de Polignac number, because 1145406789 - 2⁹ = 1145406277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145406799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31614 + ... + 57360.

It is an arithmetic number, because the mean of its divisors is an integer number (137906288).

Almost surely, 2^1145406789 is an apocalyptic number.

It is an amenable number.

1145406789 is a deficient number, since it is larger than the sum of its proper divisors (509468667).

1145406789 is a wasteful number, since it uses less digits than its factorization.

1145406789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30696 (or 30693 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1145406789 is about 33843.8589555033. The cubic root of 1145406789 is about 1046.2928342411.

The spelling of 1145406789 in words is "one billion, one hundred forty-five million, four hundred six thousand, seven hundred eighty-nine".