2143257427 has 2 divisors, whose sum is σ = 2143257428. Its totient is φ = 2143257426.

The previous prime is 2143257409. The next prime is 2143257469. The reversal of 2143257427 is 7247523412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143257427 is a prime.

It is a super-3 number, since 3×2143257427³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2143257527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071628713 + 1071628714.

It is an arithmetic number, because the mean of its divisors is an integer number (1071628714).

Almost surely, 2^2143257427 is an apocalyptic number.

2143257427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143257427 is an equidigital number, since it uses as much as digits as its factorization.

2143257427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 37.

The square root of 2143257427 is about 46295.3283496294. The cubic root of 2143257427 is about 1289.3122602547.

The spelling of 2143257427 in words is "two billion, one hundred forty-three million, two hundred fifty-seven thousand, four hundred twenty-seven".