247113147 has 16 divisors (see below), whose sum is σ = 342635040. Its totient is φ = 158226432.

The previous prime is 247113143. The next prime is 247113149. The reversal of 247113147 is 741311742.

It is not a de Polignac number, because 247113147 - 2² = 247113143 is a prime.

It is a super-2 number, since 2×247113147² = 122129814840487218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247113143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9433 + ... + 24149.

It is an arithmetic number, because the mean of its divisors is an integer number (21414690).

Almost surely, 2^247113147 is an apocalyptic number.

247113147 is a deficient number, since it is larger than the sum of its proper divisors (95521893).

247113147 is a wasteful number, since it uses less digits than its factorization.

247113147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14942.

The product of its digits is 4704, while the sum is 30.

The square root of 247113147 is about 15719.8329189594. The cubic root of 247113147 is about 627.5263266257.

Adding to 247113147 its reverse (741311742), we get a palindrome (988424889).

The spelling of 247113147 in words is "two hundred forty-seven million, one hundred thirteen thousand, one hundred forty-seven".