88138213 has 8 divisors (see below), whose sum is σ = 89337600. Its totient is φ = 86943648.

The previous prime is 88138199. The next prime is 88138223. The reversal of 88138213 is 31283188.

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

It is a cyclic number.

It is not a de Polignac number, because 88138213 - 2⁹ = 88137701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88138223) 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, 49228 + ... + 50986.

It is an arithmetic number, because the mean of its divisors is an integer number (11167200).

Almost surely, 2^88138213 is an apocalyptic number.

It is an amenable number.

88138213 is a deficient number, since it is larger than the sum of its proper divisors (1199387).

88138213 is a wasteful number, since it uses less digits than its factorization.

88138213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its digits is 9216, while the sum is 34.

The square root of 88138213 is about 9388.1954069992. The cubic root of 88138213 is about 445.0287621859.

The spelling of 88138213 in words is "eighty-eight million, one hundred thirty-eight thousand, two hundred thirteen".