143445906 has 12 divisors (see below), whose sum is σ = 310799502. Its totient is φ = 47815296.

The previous prime is 143445859. The next prime is 143446001. The reversal of 143445906 is 609544341.

It can be written as a sum of positive squares in only one way, i.e., 114383025 + 29062881 = 10695^2 + 5391^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3984591 + ... + 3984626.

Almost surely, 2^143445906 is an apocalyptic number.

143445906 is an abundant number, since it is smaller than the sum of its proper divisors (167353596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143445906 is a wasteful number, since it uses less digits than its factorization.

143445906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7969225 (or 7969222 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 143445906 is about 11976.8904979548. The cubic root of 143445906 is about 523.4751290171.

The spelling of 143445906 in words is "one hundred forty-three million, four hundred forty-five thousand, nine hundred six".