83136865 has 8 divisors (see below), whose sum is σ = 114016320. Its totient is φ = 57008112.

The previous prime is 83136863. The next prime is 83136887. The reversal of 83136865 is 56863138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83136865 - 2¹ = 83136863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83136863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187635 + ... + 1187704.

It is an arithmetic number, because the mean of its divisors is an integer number (14252040).

Almost surely, 2^83136865 is an apocalyptic number.

It is an amenable number.

83136865 is a deficient number, since it is larger than the sum of its proper divisors (30879455).

83136865 is a wasteful number, since it uses less digits than its factorization.

83136865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375351.

The product of its digits is 103680, while the sum is 40.

The square root of 83136865 is about 9117.9419278695. The cubic root of 83136865 is about 436.4467004581.

The spelling of 83136865 in words is "eighty-three million, one hundred thirty-six thousand, eight hundred sixty-five".