2047517231 has 2 divisors, whose sum is σ = 2047517232. Its totient is φ = 2047517230.

The previous prime is 2047517221. The next prime is 2047517237. The reversal of 2047517231 is 1327157402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2047517231 is a prime.

It is a super-2 number, since 2×2047517231² = 8384653622483814722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2047517237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023758615 + 1023758616.

It is an arithmetic number, because the mean of its divisors is an integer number (1023758616).

Almost surely, 2^2047517231 is an apocalyptic number.

2047517231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047517231 is an equidigital number, since it uses as much as digits as its factorization.

2047517231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 2047517231 is about 45249.4997872905. The cubic root of 2047517231 is about 1269.8210488346.

The spelling of 2047517231 in words is "two billion, forty-seven million, five hundred seventeen thousand, two hundred thirty-one".