812601 has 6 divisors (see below), whose sum is σ = 1173770. Its totient is φ = 541728.

The previous prime is 812599. The next prime is 812627. The reversal of 812601 is 106218.

812601 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 only one way, i.e., 810000 + 2601 = 900^2 + 51^2 .

It is not a de Polignac number, because 812601 - 2¹ = 812599 is a prime.

It is a super-4 number, since 4×812601⁴ (a number of 25 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45136 + ... + 45153.

2⁸¹²⁶⁰¹ is an apocalyptic number.

It is an amenable number.

812601 is a deficient number, since it is larger than the sum of its proper divisors (361169).

812601 is a wasteful number, since it uses less digits than its factorization.

812601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90295 (or 90292 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 812601 is about 901.4438418448. The cubic root of 812601 is about 93.3166452590.

Adding to 812601 its reverse (106218), we get a palindrome (918819).

It can be divided in two parts, 81 and 2601, that multiplied together give a square (210681 = 459²).

The spelling of 812601 in words is "eight hundred twelve thousand, six hundred one".