1145064939 has 4 divisors (see below), whose sum is σ = 1526753256. Its totient is φ = 763376624.

The previous prime is 1145064889. The next prime is 1145064941. The reversal of 1145064939 is 9394605411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1145064939 - 2¹³ = 1145056747 is a prime.

It is a super-2 number, since 2×1145064939² = 2622347429054147442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145064939.

It is not an unprimeable number, because it can be changed into a prime (1145065939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190844154 + ... + 190844159.

It is an arithmetic number, because the mean of its divisors is an integer number (381688314).

Almost surely, 2^1145064939 is an apocalyptic number.

1145064939 is a deficient number, since it is larger than the sum of its proper divisors (381688317).

1145064939 is an equidigital number, since it uses as much as digits as its factorization.

1145064939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381688316.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1145064939 is about 33838.8081793671. The cubic root of 1145064939 is about 1046.1887341671.

The spelling of 1145064939 in words is "one billion, one hundred forty-five million, sixty-four thousand, nine hundred thirty-nine".