129854223 has 6 divisors (see below), whose sum is σ = 187567224. Its totient is φ = 86569476.

The previous prime is 129854209. The next prime is 129854269. The reversal of 129854223 is 322458921.

It is a happy number.

129854223 is a `hidden beast` number, since 1 + 2 + 98 + 542 + 23 = 666.

It is not a de Polignac number, because 129854223 - 2¹⁴ = 129837839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129854273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7214115 + ... + 7214132.

It is an arithmetic number, because the mean of its divisors is an integer number (31261204).

Almost surely, 2^129854223 is an apocalyptic number.

129854223 is a deficient number, since it is larger than the sum of its proper divisors (57713001).

129854223 is a wasteful number, since it uses less digits than its factorization.

129854223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14428253 (or 14428250 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 129854223 is about 11395.3597134974. The cubic root of 129854223 is about 506.3902780903.

The spelling of 129854223 in words is "one hundred twenty-nine million, eight hundred fifty-four thousand, two hundred twenty-three".