1045076639 has 4 divisors (see below), whose sum is σ = 1048415856. Its totient is φ = 1041737424.

The previous prime is 1045076633. The next prime is 1045076647. The reversal of 1045076639 is 9366705401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9366705401 = 18583 ⋅504047.

It is a cyclic number.

It is not a de Polignac number, because 1045076639 - 2²⁸ = 776641183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045076596 and 1045076605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045076633) 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, 1669139 + ... + 1669764.

It is an arithmetic number, because the mean of its divisors is an integer number (262103964).

Almost surely, 2^1045076639 is an apocalyptic number.

1045076639 is a deficient number, since it is larger than the sum of its proper divisors (3339217).

1045076639 is an equidigital number, since it uses as much as digits as its factorization.

1045076639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339216.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 1045076639 is about 32327.6451199279. The cubic root of 1045076639 is about 1014.8052686031.

The spelling of 1045076639 in words is "one billion, forty-five million, seventy-six thousand, six hundred thirty-nine".