143457349 has 20 divisors (see below), whose sum is σ = 168900300. Its totient is φ = 121833600.

The previous prime is 143457341. The next prime is 143457359. The reversal of 143457349 is 943754341.

It can be written as a sum of positive squares in 2 ways, for example, as 89434849 + 54022500 = 9457^2 + 7350^2 .

It is not a de Polignac number, because 143457349 - 2³ = 143457341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143457341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 357549 + ... + 357949.

It is an arithmetic number, because the mean of its divisors is an integer number (8445015).

Almost surely, 2^143457349 is an apocalyptic number.

It is an amenable number.

143457349 is a deficient number, since it is larger than the sum of its proper divisors (25442951).

143457349 is an frugal number, since it uses more digits than its factorization.

143457349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 557 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 143457349 is about 11977.3682000680. The cubic root of 143457349 is about 523.4890482401.

The spelling of 143457349 in words is "one hundred forty-three million, four hundred fifty-seven thousand, three hundred forty-nine".