239021149 has 8 divisors (see below), whose sum is σ = 244554552. Its totient is φ = 233525760.

The previous prime is 239021137. The next prime is 239021177. The reversal of 239021149 is 941120932.

It can be written as a sum of positive squares in 4 ways, for example, as 121992025 + 117029124 = 11045^2 + 10818^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 239021149 - 2⁹ = 239020637 is a prime.

It is a super-2 number, since 2×239021149² = 114262219338560402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 239021149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239051149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417 + ... + 22129.

It is an arithmetic number, because the mean of its divisors is an integer number (30569319).

Almost surely, 2^239021149 is an apocalyptic number.

It is an amenable number.

239021149 is a deficient number, since it is larger than the sum of its proper divisors (5533403).

239021149 is a wasteful number, since it uses less digits than its factorization.

239021149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19007.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 239021149 is about 15460.3088261522. The cubic root of 239021149 is about 620.6004839601.

The spelling of 239021149 in words is "two hundred thirty-nine million, twenty-one thousand, one hundred forty-nine".