143834493 has 8 divisors (see below), whose sum is σ = 209213856. Its totient is φ = 87172400.

The previous prime is 143834491. The next prime is 143834497. The reversal of 143834493 is 394438341.

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 143834493 - 2¹ = 143834491 is a prime.

It is a super-2 number, since 2×143834493² = 41376722753134098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143834491) 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, 2179278 + ... + 2179343.

It is an arithmetic number, because the mean of its divisors is an integer number (26151732).

Almost surely, 2^143834493 is an apocalyptic number.

It is an amenable number.

143834493 is a deficient number, since it is larger than the sum of its proper divisors (65379363).

143834493 is a wasteful number, since it uses less digits than its factorization.

143834493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358635.

The product of its digits is 124416, while the sum is 39.

The square root of 143834493 is about 11993.1018923379. The cubic root of 143834493 is about 523.9473911890.

The spelling of 143834493 in words is "one hundred forty-three million, eight hundred thirty-four thousand, four hundred ninety-three".