215463113 has 4 divisors (see below), whose sum is σ = 222413568. Its totient is φ = 208512660.

The previous prime is 215463109. The next prime is 215463121. The reversal of 215463113 is 311364512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215463113 - 2² = 215463109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215462113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3475181 + ... + 3475242.

It is an arithmetic number, because the mean of its divisors is an integer number (55603392).

Almost surely, 2^215463113 is an apocalyptic number.

It is an amenable number.

215463113 is a deficient number, since it is larger than the sum of its proper divisors (6950455).

215463113 is an equidigital number, since it uses as much as digits as its factorization.

215463113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6950454.

The product of its digits is 2160, while the sum is 26.

The square root of 215463113 is about 14678.6618259295. The cubic root of 215463113 is about 599.5024699612.

The spelling of 215463113 in words is "two hundred fifteen million, four hundred sixty-three thousand, one hundred thirteen".