143297137 has 2 divisors, whose sum is σ = 143297138. Its totient is φ = 143297136.

The previous prime is 143297071. The next prime is 143297191. The reversal of 143297137 is 731792341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141348321 + 1948816 = 11889^2 + 1396^2 .

It is a cyclic number.

It is not a de Polignac number, because 143297137 - 2¹⁵ = 143264369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143297096 and 143297105.

It is not a weakly prime, because it can be changed into another prime (143297237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71648568 + 71648569.

It is an arithmetic number, because the mean of its divisors is an integer number (71648569).

Almost surely, 2^143297137 is an apocalyptic number.

It is an amenable number.

143297137 is a deficient number, since it is larger than the sum of its proper divisors (1).

143297137 is an equidigital number, since it uses as much as digits as its factorization.

143297137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 143297137 is about 11970.6782180460. The cubic root of 143297137 is about 523.2940995466.

The spelling of 143297137 in words is "one hundred forty-three million, two hundred ninety-seven thousand, one hundred thirty-seven".