143968249 has 4 divisors (see below), whose sum is σ = 144135936. Its totient is φ = 143800564.

The previous prime is 143968243. The next prime is 143968259. The reversal of 143968249 is 942869341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143968249 - 2⁵ = 143968217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143968199 and 143968208.

It is not an unprimeable number, because it can be changed into a prime (143968243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82549 + ... + 84274.

It is an arithmetic number, because the mean of its divisors is an integer number (36033984).

Almost surely, 2^143968249 is an apocalyptic number.

It is an amenable number.

143968249 is a deficient number, since it is larger than the sum of its proper divisors (167687).

143968249 is an equidigital number, since it uses as much as digits as its factorization.

143968249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167686.

The product of its digits is 373248, while the sum is 46.

The square root of 143968249 is about 11998.6769687328. The cubic root of 143968249 is about 524.1097523248.

The spelling of 143968249 in words is "one hundred forty-three million, nine hundred sixty-eight thousand, two hundred forty-nine".