2051573143 has 2 divisors, whose sum is σ = 2051573144. Its totient is φ = 2051573142.

The previous prime is 2051573137. The next prime is 2051573177. The reversal of 2051573143 is 3413751502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051573143 is a prime.

It is a super-2 number, since 2×2051573143² = 8417904722157796898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051523143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025786571 + 1025786572.

It is an arithmetic number, because the mean of its divisors is an integer number (1025786572).

Almost surely, 2^2051573143 is an apocalyptic number.

2051573143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051573143 is an equidigital number, since it uses as much as digits as its factorization.

2051573143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 2051573143 is about 45294.2948173388. The cubic root of 2051573143 is about 1270.6589555720.

The spelling of 2051573143 in words is "two billion, fifty-one million, five hundred seventy-three thousand, one hundred forty-three".