1045031109 has 4 divisors (see below), whose sum is σ = 1393374816. Its totient is φ = 696687404.

The previous prime is 1045031101. The next prime is 1045031129. The reversal of 1045031109 is 9011305401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1045031109 - 2³ = 1045031101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045031101) 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, 174171849 + ... + 174171854.

It is an arithmetic number, because the mean of its divisors is an integer number (348343704).

Almost surely, 2^1045031109 is an apocalyptic number.

It is an amenable number.

1045031109 is a deficient number, since it is larger than the sum of its proper divisors (348343707).

1045031109 is an equidigital number, since it uses as much as digits as its factorization.

1045031109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348343706.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1045031109 is about 32326.9409162080. The cubic root of 1045031109 is about 1014.7905313251.

The spelling of 1045031109 in words is "one billion, forty-five million, thirty-one thousand, one hundred nine".