215114423 has 16 divisors (see below), whose sum is σ = 231052800. Its totient is φ = 199783584.

The previous prime is 215114401. The next prime is 215114453. The reversal of 215114423 is 324411512.

215114423 = 277² + 278² + ... + 873².

It is a cyclic number.

It is not a de Polignac number, because 215114423 - 2⁶ = 215114359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215114453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196265 + ... + 197357.

It is an arithmetic number, because the mean of its divisors is an integer number (14440800).

Almost surely, 2^215114423 is an apocalyptic number.

215114423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

215114423 is a deficient number, since it is larger than the sum of its proper divisors (15938377).

215114423 is a wasteful number, since it uses less digits than its factorization.

215114423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

The product of its digits is 960, while the sum is 23.

The square root of 215114423 is about 14666.7795715351. The cubic root of 215114423 is about 599.1788981284.

Adding to 215114423 its reverse (324411512), we get a palindrome (539525935).

The spelling of 215114423 in words is "two hundred fifteen million, one hundred fourteen thousand, four hundred twenty-three".