143049449 has 2 divisors, whose sum is σ = 143049450. Its totient is φ = 143049448.

The previous prime is 143049377. The next prime is 143049457. The reversal of 143049449 is 944940341.

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., 83265625 + 59783824 = 9125^2 + 7732^2 .

It is a cyclic number.

It is not a de Polignac number, because 143049449 - 2¹⁶ = 142983913 is a prime.

It is equal to p_8074694 and since 143049449 and 8074694 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (143049479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71524724 + 71524725.

It is an arithmetic number, because the mean of its divisors is an integer number (71524725).

Almost surely, 2^143049449 is an apocalyptic number.

It is an amenable number.

143049449 is a deficient number, since it is larger than the sum of its proper divisors (1).

143049449 is an equidigital number, since it uses as much as digits as its factorization.

143049449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 143049449 is about 11960.3281309503. The cubic root of 143049449 is about 522.9924223878.

The spelling of 143049449 in words is "one hundred forty-three million, forty-nine thousand, four hundred forty-nine".