143999998 has 4 divisors (see below), whose sum is σ = 216000000. Its totient is φ = 71999998.

The previous prime is 143999983. The next prime is 144000001. The reversal of 143999998 is 899999341.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35999998 + ... + 36000001.

It is an arithmetic number, because the mean of its divisors is an integer number (54000000).

Almost surely, 2^143999998 is an apocalyptic number.

143999998 is a deficient number, since it is larger than the sum of its proper divisors (72000002).

143999998 is an equidigital number, since it uses as much as digits as its factorization.

143999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72000001.

The product of its digits is 5668704, while the sum is 61.

The square root of 143999998 is about 11999.9999166667. Note that the first 4 decimals coincide. The cubic root of 143999998 is about 524.1482764152.

The spelling of 143999998 in words is "one hundred forty-three million, nine hundred ninety-nine thousand, nine hundred ninety-eight".