239833447714249 has 3 divisors (see below), whose sum is σ = 239833463200807. Its totient is φ = 239833432227692.

The previous prime is 239833447714247. The next prime is 239833447714261. The reversal of 239833447714249 is 942417744338932.

The square root of 239833447714249 is 15486557.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 239201950484025 + 631497230224 = 15466155^2 + 794668^2 .

It is not a de Polignac number, because 239833447714249 - 2¹ = 239833447714247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239833447714247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7743279 + ... + 23229835.

Almost surely, 2^{239833447714249} is an apocalyptic number.

239833447714249 is the 15486557-th square number.

239833447714249 is the 7743279-th centered octagonal number.

It is an amenable number.

239833447714249 is a deficient number, since it is larger than the sum of its proper divisors (15486558).

239833447714249 is an frugal number, since it uses more digits than its factorization.

239833447714249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30973114 (or 15486557 counting only the distinct ones).

The product of its digits is 877879296, while the sum is 70.

The spelling of 239833447714249 in words is "two hundred thirty-nine trillion, eight hundred thirty-three billion, four hundred forty-seven million, seven hundred fourteen thousand, two hundred forty-nine".