143454479 has 4 divisors (see below), whose sum is σ = 163947984. Its totient is φ = 122960976.

The previous prime is 143454463. The next prime is 143454491. The reversal of 143454479 is 974454341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143454479 - 2⁴ = 143454463 is a prime.

It is a super-2 number, since 2×143454479² = 41158375090322882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143454419) 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 3 ways as a sum of consecutive naturals, for example, 10246742 + ... + 10246755.

It is an arithmetic number, because the mean of its divisors is an integer number (40986996).

Almost surely, 2^143454479 is an apocalyptic number.

143454479 is a deficient number, since it is larger than the sum of its proper divisors (20493505).

143454479 is an equidigital number, since it uses as much as digits as its factorization.

143454479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20493504.

The product of its digits is 241920, while the sum is 41.

The square root of 143454479 is about 11977.2483901771. The cubic root of 143454479 is about 523.4855572522.

The spelling of 143454479 in words is "one hundred forty-three million, four hundred fifty-four thousand, four hundred seventy-nine".