811053 has 40 divisors (see below), whose sum is σ = 1393920. Its totient is φ = 466560.
The previous prime is 811039. The next prime is 811067. The reversal of 811053 is 350118.
811053 = 123 + 133 + ... + 423.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (811039) and next prime (811067).
It is not a de Polignac number, because 811053 - 24 = 811037 is a prime.
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (811253) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26148 + ... + 26178.
It is an arithmetic number, because the mean of its divisors is an integer number (34848).
2811053 is an apocalyptic number.
It is an amenable number.
811053 is a deficient number, since it is larger than the sum of its proper divisors (582867).
811053 is a wasteful number, since it uses less digits than its factorization.
811053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79 (or 70 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
The square root of 811053 is about 900.5848099985. The cubic root of 811053 is about 93.2573517097.
The spelling of 811053 in words is "eight hundred eleven thousand, fifty-three".
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