802156 has 12 divisors (see below), whose sum is σ = 1449280. Its totient is φ = 388080.

The previous prime is 802147. The next prime is 802159. The reversal of 802156 is 651208.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (802159) by changing a digit.

802156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3111 + ... + 3358.

2⁸⁰²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

802156 is a deficient number, since it is larger than the sum of its proper divisors (647124).

802156 is a wasteful number, since it uses less digits than its factorization.

802156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6504 (or 6502 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 802156 is about 895.6316207013. The cubic root of 802156 is about 92.9150957481.

The spelling of 802156 in words is "eight hundred two thousand, one hundred fifty-six".