143990530 has 8 divisors (see below), whose sum is σ = 259182972. Its totient is φ = 57596208.

The previous prime is 143990489. The next prime is 143990533. The reversal of 143990530 is 35099341.

It can be written as a sum of positive squares in 2 ways, for example, as 140825689 + 3164841 = 11867^2 + 1779^2 .

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

It is not an unprimeable number, because it can be changed into a prime (143990533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7199517 + ... + 7199536.

Almost surely, 2^143990530 is an apocalyptic number.

143990530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143990530 is a deficient number, since it is larger than the sum of its proper divisors (115192442).

143990530 is a wasteful number, since it uses less digits than its factorization.

143990530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14399060.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 143990530 is about 11999.6054101791. The cubic root of 143990530 is about 524.1367885802.

The spelling of 143990530 in words is "one hundred forty-three million, nine hundred ninety thousand, five hundred thirty".