1000939193 has 4 divisors (see below), whose sum is σ = 1001307108. Its totient is φ = 1000571280.

The previous prime is 1000939187. The next prime is 1000939201. The reversal of 1000939193 is 3919390001.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 641760889 + 359178304 = 25333^2 + 18952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000939193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000939393) 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, 179846 + ... + 185327.

It is an arithmetic number, because the mean of its divisors is an integer number (250326777).

Almost surely, 2^1000939193 is an apocalyptic number.

It is an amenable number.

1000939193 is a deficient number, since it is larger than the sum of its proper divisors (367915).

1000939193 is an equidigital number, since it uses as much as digits as its factorization.

1000939193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367914.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 1000939193 is about 31637.6230617915. The cubic root of 1000939193 is about 1000.3129663752.

The spelling of 1000939193 in words is "one billion, nine hundred thirty-nine thousand, one hundred ninety-three".