81095352 has 64 divisors (see below), whose sum is σ = 221964960. Its totient is φ = 24537600.

The previous prime is 81095341. The next prime is 81095383. The reversal of 81095352 is 25359018.

It is a super-2 number, since 2×81095352² = 13152912232007808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16902 + ... + 21162.

Almost surely, 2^81095352 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 81095352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110982480).

81095352 is an abundant number, since it is smaller than the sum of its proper divisors (140869608).

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

81095352 is a wasteful number, since it uses less digits than its factorization.

81095352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 81095352 is about 9005.2957752647. The cubic root of 81095352 is about 432.8445839979.

The spelling of 81095352 in words is "eighty-one million, ninety-five thousand, three hundred fifty-two".