802145 has 8 divisors (see below), whose sum is σ = 1019304. Its totient is φ = 603904.

The previous prime is 802141. The next prime is 802147. The reversal of 802145 is 541208.

802145 = T₂₀₀ + T₂₀₁ + ... + T₂₃₃.

802145 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 187489 + 614656 = 433^2 + 784^2 .

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 802145 - 2² = 802141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802141) 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, 4634 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (127413).

2⁸⁰²¹⁴⁵ is an apocalyptic number.

802145 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

802145 is a deficient number, since it is larger than the sum of its proper divisors (217159).

802145 is a wasteful number, since it uses less digits than its factorization.

802145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9459.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 802145 is about 895.6254797626. The cubic root of 802145 is about 92.9146710299.

The spelling of 802145 in words is "eight hundred two thousand, one hundred forty-five".