802138193 has 4 divisors (see below), whose sum is σ = 802948608. Its totient is φ = 801327780.

The previous prime is 802138157. The next prime is 802138213. The reversal of 802138193 is 391831208.

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 802138193 - 2¹² = 802134097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802138793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403721 + ... + 405702.

It is an arithmetic number, because the mean of its divisors is an integer number (200737152).

Almost surely, 2^802138193 is an apocalyptic number.

It is an amenable number.

802138193 is a deficient number, since it is larger than the sum of its proper divisors (810415).

802138193 is an equidigital number, since it uses as much as digits as its factorization.

802138193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810414.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 802138193 is about 28322.0442941536. The cubic root of 802138193 is about 929.1440820463.

The spelling of 802138193 in words is "eight hundred two million, one hundred thirty-eight thousand, one hundred ninety-three".