1993370143 has 2 divisors, whose sum is σ = 1993370144. Its totient is φ = 1993370142.

The previous prime is 1993370101. The next prime is 1993370167. The reversal of 1993370143 is 3410733991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1993370143 - 2²¹ = 1991272991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1993370096 and 1993370105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1993370243) 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, 996685071 + 996685072.

It is an arithmetic number, because the mean of its divisors is an integer number (996685072).

Almost surely, 2^1993370143 is an apocalyptic number.

1993370143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1993370143 is an equidigital number, since it uses as much as digits as its factorization.

1993370143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 1993370143 is about 44647.1739643172. The cubic root of 1993370143 is about 1258.5273259948.

The spelling of 1993370143 in words is "one billion, nine hundred ninety-three million, three hundred seventy thousand, one hundred forty-three".