83136340 has 48 divisors (see below), whose sum is σ = 203616000. Its totient is φ = 28501536.

The previous prime is 83136281. The next prime is 83136401. The reversal of 83136340 is 4363138.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 83136299 and 83136308.

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, 801 + ... + 12919.

It is an arithmetic number, because the mean of its divisors is an integer number (4242000).

Almost surely, 2^83136340 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 83136340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101808000).

83136340 is an abundant number, since it is smaller than the sum of its proper divisors (120479660).

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

83136340 is a wasteful number, since it uses less digits than its factorization.

83136340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12149 (or 12133 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 83136340 is about 9117.9131384325. The cubic root of 83136340 is about 436.4457817521.

Adding to 83136340 its reverse (4363138), we get a palindrome (87499478).

The spelling of 83136340 in words is "eighty-three million, one hundred thirty-six thousand, three hundred forty".