143134457 has 2 divisors, whose sum is σ = 143134458. Its totient is φ = 143134456.

The previous prime is 143134447. The next prime is 143134477. The reversal of 143134457 is 754431341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98029801 + 45104656 = 9901^2 + 6716^2 .

It is an emirp because it is prime and its reverse (754431341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143134457 - 2⁶ = 143134393 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (143134417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71567228 + 71567229.

It is an arithmetic number, because the mean of its divisors is an integer number (71567229).

Almost surely, 2^143134457 is an apocalyptic number.

It is an amenable number.

143134457 is a deficient number, since it is larger than the sum of its proper divisors (1).

143134457 is an equidigital number, since it uses as much as digits as its factorization.

143134457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 32.

The square root of 143134457 is about 11963.8813518022. The cubic root of 143134457 is about 523.0959990099.

Adding to 143134457 its reverse (754431341), we get a palindrome (897565798).

The spelling of 143134457 in words is "one hundred forty-three million, one hundred thirty-four thousand, four hundred fifty-seven".