143087493 has 8 divisors (see below), whose sum is σ = 192472128. Its totient is φ = 94547264.

The previous prime is 143087489. The next prime is 143087543. The reversal of 143087493 is 394780341.

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

It is a cyclic number.

It is not a de Polignac number, because 143087493 - 2² = 143087489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143087293) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 210705 + ... + 211382.

It is an arithmetic number, because the mean of its divisors is an integer number (24059016).

Almost surely, 2^143087493 is an apocalyptic number.

It is an amenable number.

143087493 is a deficient number, since it is larger than the sum of its proper divisors (49384635).

143087493 is a wasteful number, since it uses less digits than its factorization.

143087493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422203.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 143087493 is about 11961.9184498140. The cubic root of 143087493 is about 523.0387815553.

The spelling of 143087493 in words is "one hundred forty-three million, eighty-seven thousand, four hundred ninety-three".