239747143429 has 4 divisors (see below), whose sum is σ = 240503443884. Its totient is φ = 238990842976.

The previous prime is 239747143411. The next prime is 239747143453. The reversal of 239747143429 is 924341747932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45528890625 + 194218252804 = 213375^2 + 440702^2 .

It is a cyclic number.

It is not a de Polignac number, because 239747143429 - 2¹⁵ = 239747110661 is a prime.

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 239747143429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239747143529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378149752 + ... + 378150385.

It is an arithmetic number, because the mean of its divisors is an integer number (60125860971).

Almost surely, 2^239747143429 is an apocalyptic number.

It is an amenable number.

239747143429 is a deficient number, since it is larger than the sum of its proper divisors (756300455).

239747143429 is an equidigital number, since it uses as much as digits as its factorization.

239747143429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756300454.

The product of its digits is 9144576, while the sum is 55.

The spelling of 239747143429 in words is "two hundred thirty-nine billion, seven hundred forty-seven million, one hundred forty-three thousand, four hundred twenty-nine".