82801151 has 4 divisors (see below), whose sum is σ = 83023512. Its totient is φ = 82578792.

The previous prime is 82801141. The next prime is 82801157. The reversal of 82801151 is 15110828.

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

It is a cyclic number.

It is not a de Polignac number, because 82801151 - 2¹⁰ = 82800127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82801151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82801157) 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, 110621 + ... + 111366.

It is an arithmetic number, because the mean of its divisors is an integer number (20755878).

Almost surely, 2^82801151 is an apocalyptic number.

82801151 is a deficient number, since it is larger than the sum of its proper divisors (222361).

82801151 is a wasteful number, since it uses less digits than its factorization.

82801151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222360.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 82801151 is about 9099.5137782191. The cubic root of 82801151 is about 435.8584378256.

Adding to 82801151 its reverse (15110828), we get a palindrome (97911979).

The spelling of 82801151 in words is "eighty-two million, eight hundred one thousand, one hundred fifty-one".