143136493 has 8 divisors (see below), whose sum is σ = 145704960. Its totient is φ = 140590800.

The previous prime is 143136463. The next prime is 143136523. The reversal of 143136493 is 394631341.

It is an interprime number because it is at equal distance from previous prime (143136463) and next prime (143136523).

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 143136493 - 2⁹ = 143135981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143136463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7248 + ... + 18406.

It is an arithmetic number, because the mean of its divisors is an integer number (18213120).

Almost surely, 2^143136493 is an apocalyptic number.

It is an amenable number.

143136493 is a deficient number, since it is larger than the sum of its proper divisors (2568467).

143136493 is a wasteful number, since it uses less digits than its factorization.

143136493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11387.

The product of its digits is 23328, while the sum is 34.

The square root of 143136493 is about 11963.9664409426. The cubic root of 143136493 is about 523.0984792382.

The spelling of 143136493 in words is "one hundred forty-three million, one hundred thirty-six thousand, four hundred ninety-three".