215255103239 has 8 divisors (see below), whose sum is σ = 235001796480. Its totient is φ = 195538084600.

The previous prime is 215255103223. The next prime is 215255103253. The reversal of 215255103239 is 932301552512.

It is a happy number.

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 215255103239 - 2⁴ = 215255103223 is a prime.

It is a super-2 number, since 2×215255103239² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215255103269) 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, 7403477 + ... + 7432494.

It is an arithmetic number, because the mean of its divisors is an integer number (29375224560).

Almost surely, 2^215255103239 is an apocalyptic number.

215255103239 is a deficient number, since it is larger than the sum of its proper divisors (19746693241).

215255103239 is a wasteful number, since it uses less digits than its factorization.

215255103239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14837301.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 215255103239 in words is "two hundred fifteen billion, two hundred fifty-five million, one hundred three thousand, two hundred thirty-nine".