229970139 has 8 divisors (see below), whose sum is σ = 350430720. Its totient is φ = 131411496.

The previous prime is 229970137. The next prime is 229970159. The reversal of 229970139 is 931079922.

It is a happy number.

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

It is not a de Polignac number, because 229970139 - 2¹ = 229970137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229970139.

It is not an unprimeable number, because it can be changed into a prime (229970137) 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, 5475459 + ... + 5475500.

It is an arithmetic number, because the mean of its divisors is an integer number (43803840).

Almost surely, 2^229970139 is an apocalyptic number.

229970139 is a deficient number, since it is larger than the sum of its proper divisors (120460581).

229970139 is a wasteful number, since it uses less digits than its factorization.

229970139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10950969.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 229970139 is about 15164.7663681311. The cubic root of 229970139 is about 612.6660509944. Note that the first 3 decimals are identical.

The spelling of 229970139 in words is "two hundred twenty-nine million, nine hundred seventy thousand, one hundred thirty-nine".