143480481 has 4 divisors (see below), whose sum is σ = 191307312. Its totient is φ = 95653652.

The previous prime is 143480471. The next prime is 143480489. The reversal of 143480481 is 184084341.

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 a cyclic number.

It is not a de Polignac number, because 143480481 - 2²⁵ = 109926049 is a prime.

It is a super-2 number, since 2×143480481² = 41173296855982722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143480489) 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, 23913411 + ... + 23913416.

It is an arithmetic number, because the mean of its divisors is an integer number (47826828).

Almost surely, 2^143480481 is an apocalyptic number.

It is an amenable number.

143480481 is a deficient number, since it is larger than the sum of its proper divisors (47826831).

143480481 is an equidigital number, since it uses as much as digits as its factorization.

143480481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47826830.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 143480481 is about 11978.3338156857. Note that the first 3 decimals coincide. The cubic root of 143480481 is about 523.5171836590.

The spelling of 143480481 in words is "one hundred forty-three million, four hundred eighty thousand, four hundred eighty-one".