143520473 has 4 divisors (see below), whose sum is σ = 143544960. Its totient is φ = 143495988.

The previous prime is 143520467. The next prime is 143520479. The reversal of 143520473 is 374025341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (143520467) and next prime (143520479).

It is a cyclic number.

It is not a de Polignac number, because 143520473 - 2⁴ = 143520457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143520479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336 + ... + 17102.

It is an arithmetic number, because the mean of its divisors is an integer number (35886240).

Almost surely, 2^143520473 is an apocalyptic number.

It is an amenable number.

143520473 is a deficient number, since it is larger than the sum of its proper divisors (24487).

143520473 is an equidigital number, since it uses as much as digits as its factorization.

143520473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24486.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 143520473 is about 11980.0030467442. The cubic root of 143520473 is about 523.5658187397.

The spelling of 143520473 in words is "one hundred forty-three million, five hundred twenty thousand, four hundred seventy-three".