213447129 has 8 divisors (see below), whose sum is σ = 325252800. Its totient is φ = 121969776.

The previous prime is 213447127. The next prime is 213447133. The reversal of 213447129 is 921744312.

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

It is not a de Polignac number, because 213447129 - 2¹ = 213447127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213447129.

It is not an unprimeable number, because it can be changed into a prime (213447127) 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, 5082054 + ... + 5082095.

It is an arithmetic number, because the mean of its divisors is an integer number (40656600).

Almost surely, 2^213447129 is an apocalyptic number.

It is an amenable number.

213447129 is a deficient number, since it is larger than the sum of its proper divisors (111805671).

213447129 is a wasteful number, since it uses less digits than its factorization.

213447129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164159.

The product of its digits is 12096, while the sum is 33.

The square root of 213447129 is about 14609.8298758062. The cubic root of 213447129 is about 597.6268565812.

The spelling of 213447129 in words is "two hundred thirteen million, four hundred forty-seven thousand, one hundred twenty-nine".