1013003945 has 8 divisors (see below), whose sum is σ = 1248459144. Its totient is φ = 788500224.

The previous prime is 1013003941. The next prime is 1013003951. The reversal of 1013003945 is 5493003101.

1013003945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 487173184 + 525830761 = 22072^2 + 22931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013003945 - 2² = 1013003941 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1013003941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2737664 + ... + 2738033.

It is an arithmetic number, because the mean of its divisors is an integer number (156057393).

Almost surely, 2^1013003945 is an apocalyptic number.

It is an amenable number.

1013003945 is a deficient number, since it is larger than the sum of its proper divisors (235455199).

1013003945 is an equidigital number, since it uses as much as digits as its factorization.

1013003945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475739.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1013003945 is about 31827.7229000128. The cubic root of 1013003945 is about 1004.3159937323.

The spelling of 1013003945 in words is "one billion, thirteen million, three thousand, nine hundred forty-five".