215439103 has 8 divisors (see below), whose sum is σ = 238533120. Its totient is φ = 192929880.

The previous prime is 215439071. The next prime is 215439109. The reversal of 215439103 is 301934512.

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

It is not a de Polignac number, because 215439103 - 2⁵ = 215439071 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 (215439109) 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, 145423 + ... + 146896.

It is an arithmetic number, because the mean of its divisors is an integer number (29816640).

Almost surely, 2^215439103 is an apocalyptic number.

215439103 is a deficient number, since it is larger than the sum of its proper divisors (23094017).

215439103 is a wasteful number, since it uses less digits than its factorization.

215439103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292397.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 215439103 is about 14677.8439492999. The cubic root of 215439103 is about 599.4802007372.

The spelling of 215439103 in words is "two hundred fifteen million, four hundred thirty-nine thousand, one hundred three".