1045231039 has 4 divisors (see below), whose sum is σ = 1046041960. Its totient is φ = 1044420120.

The previous prime is 1045231037. The next prime is 1045231049. The reversal of 1045231039 is 9301325401.

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 1045231039 - 2¹ = 1045231037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1045230998 and 1045231016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045231037) 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, 403524 + ... + 406105.

It is an arithmetic number, because the mean of its divisors is an integer number (261510490).

Almost surely, 2^1045231039 is an apocalyptic number.

1045231039 is a deficient number, since it is larger than the sum of its proper divisors (810921).

1045231039 is an equidigital number, since it uses as much as digits as its factorization.

1045231039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810920.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1045231039 is about 32330.0330807130. The cubic root of 1045231039 is about 1014.8552420411.

The spelling of 1045231039 in words is "one billion, forty-five million, two hundred thirty-one thousand, thirty-nine".