2047137431 has 2 divisors, whose sum is σ = 2047137432. Its totient is φ = 2047137430.

The previous prime is 2047137413. The next prime is 2047137437. The reversal of 2047137431 is 1347317402.

Together with previous prime (2047137413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2047137431 is a prime.

It is a super-2 number, since 2×2047137431² = 8381543322802559522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2047137437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023568715 + 1023568716.

It is an arithmetic number, because the mean of its divisors is an integer number (1023568716).

Almost surely, 2^2047137431 is an apocalyptic number.

2047137431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047137431 is an equidigital number, since it uses as much as digits as its factorization.

2047137431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 2047137431 is about 45245.3028611811. The cubic root of 2047137431 is about 1269.7425296978.

The spelling of 2047137431 in words is "two billion, forty-seven million, one hundred thirty-seven thousand, four hundred thirty-one".