143478645 has 8 divisors (see below), whose sum is σ = 229565856. Its totient is φ = 76521936.

The previous prime is 143478611. The next prime is 143478661. The reversal of 143478645 is 546874341.

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

It is not a de Polignac number, because 143478645 - 2⁶ = 143478581 is a prime.

It is a super-2 number, since 2×143478645² = 41172243142072050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 143478597 and 143478606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4782607 + ... + 4782636.

It is an arithmetic number, because the mean of its divisors is an integer number (28695732).

Almost surely, 2^143478645 is an apocalyptic number.

143478645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143478645 is a deficient number, since it is larger than the sum of its proper divisors (86087211).

143478645 is an equidigital number, since it uses as much as digits as its factorization.

143478645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9565251.

The product of its digits is 322560, while the sum is 42.

The square root of 143478645 is about 11978.2571770688. The cubic root of 143478645 is about 523.5149506453.

The spelling of 143478645 in words is "one hundred forty-three million, four hundred seventy-eight thousand, six hundred forty-five".