157830143 has 2 divisors, whose sum is σ = 157830144. Its totient is φ = 157830142.

The previous prime is 157830109. The next prime is 157830157. The reversal of 157830143 is 341038751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157830143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157830943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78915071 + 78915072.

It is an arithmetic number, because the mean of its divisors is an integer number (78915072).

Almost surely, 2^157830143 is an apocalyptic number.

157830143 is a deficient number, since it is larger than the sum of its proper divisors (1).

157830143 is an equidigital number, since it uses as much as digits as its factorization.

157830143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 157830143 is about 12563.0467244216. The cubic root of 157830143 is about 540.4182208217.

Adding to 157830143 its reverse (341038751), we get a palindrome (498868894).

The spelling of 157830143 in words is "one hundred fifty-seven million, eight hundred thirty thousand, one hundred forty-three".