143449706 has 16 divisors (see below), whose sum is σ = 228138120. Its totient is φ = 67415040.

The previous prime is 143449681. The next prime is 143449717. The reversal of 143449706 is 607944341.

143449706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 86583025 + 56866681 = 9305^2 + 7541^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 143449706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27560 + ... + 32348.

Almost surely, 2^143449706 is an apocalyptic number.

143449706 is a deficient number, since it is larger than the sum of its proper divisors (84688414).

143449706 is a wasteful number, since it uses less digits than its factorization.

143449706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 143449706 is about 11977.0491357429. The cubic root of 143449706 is about 523.4797514052.

The spelling of 143449706 in words is "one hundred forty-three million, four hundred forty-nine thousand, seven hundred six".