143898946 has 8 divisors (see below), whose sum is σ = 217758924. Its totient is φ = 71312640.

The previous prime is 143898917. The next prime is 143898947. The reversal of 143898946 is 649898341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135839025 + 8059921 = 11655^2 + 2839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 143898893 and 143898902.

It is not an unprimeable number, because it can be changed into a prime (143898947) 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, 318135 + ... + 318586.

Almost surely, 2^143898946 is an apocalyptic number.

143898946 is a deficient number, since it is larger than the sum of its proper divisors (73859978).

143898946 is a wasteful number, since it uses less digits than its factorization.

143898946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636836.

The product of its digits is 1492992, while the sum is 52.

The square root of 143898946 is about 11995.7886776985. The cubic root of 143898946 is about 524.0256407048.

The spelling of 143898946 in words is "one hundred forty-three million, eight hundred ninety-eight thousand, nine hundred forty-six".