812152 has 24 divisors (see below), whose sum is σ = 1675800. Its totient is φ = 368720.

The previous prime is 812137. The next prime is 812167. The reversal of 812152 is 251218.

It is an interprime number because it is at equal distance from previous prime (812137) and next prime (812167).

It is a super-2 number, since 2×812152² = 1319181742208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 549 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (69825).

2⁸¹²¹⁵² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837900).

812152 is an abundant number, since it is smaller than the sum of its proper divisors (863648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812152 is a wasteful number, since it uses less digits than its factorization.

812152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 852 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 812152 is about 901.1947625236. The cubic root of 812152 is about 93.2994548243.

The spelling of 812152 in words is "eight hundred twelve thousand, one hundred fifty-two".