143351146 has 4 divisors (see below), whose sum is σ = 215026722. Its totient is φ = 71675572.

The previous prime is 143351137. The next prime is 143351149. The reversal of 143351146 is 641153341.

143351146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641153341 = 277 ⋅2314633.

It can be written as a sum of positive squares in only one way, i.e., 122965921 + 20385225 = 11089^2 + 4515^2 .

It is not an unprimeable number, because it can be changed into a prime (143351149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35837785 + ... + 35837788.

Almost surely, 2^143351146 is an apocalyptic number.

143351146 is a deficient number, since it is larger than the sum of its proper divisors (71675576).

143351146 is an equidigital number, since it uses as much as digits as its factorization.

143351146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71675575.

The product of its digits is 4320, while the sum is 28.

The square root of 143351146 is about 11972.9338927432. The cubic root of 143351146 is about 523.3598348469.

The spelling of 143351146 in words is "one hundred forty-three million, three hundred fifty-one thousand, one hundred forty-six".