143634473 has 8 divisors (see below), whose sum is σ = 144976392. Its totient is φ = 142299136.

The previous prime is 143634451. The next prime is 143634493. The reversal of 143634473 is 374436341.

It can be written as a sum of positive squares in 4 ways, for example, as 65983129 + 77651344 = 8123^2 + 8812^2 .

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 143634473 - 2¹⁴ = 143618089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143634493) 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, 49211 + ... + 52047.

It is an arithmetic number, because the mean of its divisors is an integer number (18122049).

Almost surely, 2^143634473 is an apocalyptic number.

It is an amenable number.

143634473 is a deficient number, since it is larger than the sum of its proper divisors (1341919).

143634473 is a wasteful number, since it uses less digits than its factorization.

143634473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291.

The product of its digits is 72576, while the sum is 35.

The square root of 143634473 is about 11984.7600309727. The cubic root of 143634473 is about 523.7044068817.

The spelling of 143634473 in words is "one hundred forty-three million, six hundred thirty-four thousand, four hundred seventy-three".