213023229 has 8 divisors (see below), whose sum is σ = 284102112. Its totient is φ = 141979920.

The previous prime is 213023201. The next prime is 213023257. The reversal of 213023229 is 922320312.

It is an interprime number because it is at equal distance from previous prime (213023201) and next prime (213023257).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213023229 - 2⁷ = 213023101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213023199 and 213023208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213023929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12294 + ... + 24024.

It is an arithmetic number, because the mean of its divisors is an integer number (35512764).

Almost surely, 2^213023229 is an apocalyptic number.

It is an amenable number.

213023229 is a deficient number, since it is larger than the sum of its proper divisors (71078883).

213023229 is a wasteful number, since it uses less digits than its factorization.

213023229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 213023229 is about 14595.3153100575. The cubic root of 213023229 is about 597.2309710119.

It can be divided in two parts, 21302 and 3229, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 213023229 in words is "two hundred thirteen million, twenty-three thousand, two hundred twenty-nine".