214323155 has 4 divisors (see below), whose sum is σ = 257187792. Its totient is φ = 171458520.

The previous prime is 214323143. The next prime is 214323157. The reversal of 214323155 is 551323412.

It is a happy number.

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

It is not a de Polignac number, because 214323155 - 2¹⁰ = 214322131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214323157) 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, 21432311 + ... + 21432320.

It is an arithmetic number, because the mean of its divisors is an integer number (64296948).

Almost surely, 2^214323155 is an apocalyptic number.

214323155 is a deficient number, since it is larger than the sum of its proper divisors (42864637).

214323155 is an equidigital number, since it uses as much as digits as its factorization.

214323155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42864636.

The product of its digits is 3600, while the sum is 26.

The square root of 214323155 is about 14639.7798822250. The cubic root of 214323155 is about 598.4433305338.

Adding to 214323155 its reverse (551323412), we get a palindrome (765646567).

The spelling of 214323155 in words is "two hundred fourteen million, three hundred twenty-three thousand, one hundred fifty-five".