215250113 has 8 divisors (see below), whose sum is σ = 235737600. Its totient is φ = 195324048.

The previous prime is 215250109. The next prime is 215250157. The reversal of 215250113 is 311052512.

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 215250113 - 2² = 215250109 is a prime.

It is a super-2 number, since 2×215250113² = 92665222293025538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215250103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139553 + ... + 141086.

It is an arithmetic number, because the mean of its divisors is an integer number (29467200).

Almost surely, 2^215250113 is an apocalyptic number.

It is an amenable number.

215250113 is a deficient number, since it is larger than the sum of its proper divisors (20487487).

215250113 is a wasteful number, since it uses less digits than its factorization.

215250113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280711.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 215250113 is about 14671.4046021504. The cubic root of 215250113 is about 599.3048551189.

The spelling of 215250113 in words is "two hundred fifteen million, two hundred fifty thousand, one hundred thirteen".