247112739 has 12 divisors (see below), whose sum is σ = 359080176. Its totient is φ = 163754352.

The previous prime is 247112729. The next prime is 247112773. The reversal of 247112739 is 937211742.

247112739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247112739 - 2⁵ = 247112707 is a prime.

It is a super-2 number, since 2×247112739² = 122129411552164242, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (247112729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80704 + ... + 83709.

It is an arithmetic number, because the mean of its divisors is an integer number (29923348).

Almost surely, 2^247112739 is an apocalyptic number.

247112739 is a deficient number, since it is larger than the sum of its proper divisors (111967437).

247112739 is a wasteful number, since it uses less digits than its factorization.

247112739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164586 (or 164583 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 247112739 is about 15719.8199417169. The cubic root of 247112739 is about 627.5259812632.

The spelling of 247112739 in words is "two hundred forty-seven million, one hundred twelve thousand, seven hundred thirty-nine".