247898131 has 12 divisors (see below), whose sum is σ = 283599232. Its totient is φ = 215365248.

The previous prime is 247898089. The next prime is 247898141. The reversal of 247898131 is 131898742.

It is not a de Polignac number, because 247898131 - 2¹⁵ = 247865363 is a prime.

It is a super-2 number, since 2×247898131² = 122906966706586322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247898141) 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, 29235 + ... + 36748.

Almost surely, 2^247898131 is an apocalyptic number.

247898131 is a deficient number, since it is larger than the sum of its proper divisors (35701101).

247898131 is a wasteful number, since it uses less digits than its factorization.

247898131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66030 (or 66013 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 247898131 is about 15744.7810718346. The cubic root of 247898131 is about 628.1900946902.

The spelling of 247898131 in words is "two hundred forty-seven million, eight hundred ninety-eight thousand, one hundred thirty-one".