215451014 has 4 divisors (see below), whose sum is σ = 323176524. Its totient is φ = 107725506.

The previous prime is 215451007. The next prime is 215451017. The reversal of 215451014 is 410154512.

215451014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215451017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53862752 + ... + 53862755.

It is an arithmetic number, because the mean of its divisors is an integer number (80794131).

Almost surely, 2^215451014 is an apocalyptic number.

215451014 is a deficient number, since it is larger than the sum of its proper divisors (107725510).

215451014 is a wasteful number, since it uses less digits than its factorization.

215451014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107725509.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 215451014 is about 14678.2496912949. The cubic root of 215451014 is about 599.4912483712.

The spelling of 215451014 in words is "two hundred fifteen million, four hundred fifty-one thousand, fourteen".