239063749 has 4 divisors (see below), whose sum is σ = 239193664. Its totient is φ = 238933836.

The previous prime is 239063731. The next prime is 239063779. The reversal of 239063749 is 947360932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239063749 - 2²³ = 230675141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239063779) 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 3 ways as a sum of consecutive naturals, for example, 62157 + ... + 65890.

It is an arithmetic number, because the mean of its divisors is an integer number (59798416).

Almost surely, 2^239063749 is an apocalyptic number.

It is an amenable number.

239063749 is a deficient number, since it is larger than the sum of its proper divisors (129915).

239063749 is a wasteful number, since it uses less digits than its factorization.

239063749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129914.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 239063749 is about 15461.6864862796. The cubic root of 239063749 is about 620.6373510048.

The spelling of 239063749 in words is "two hundred thirty-nine million, sixty-three thousand, seven hundred forty-nine".