143255431 has 8 divisors (see below), whose sum is σ = 163073664. Its totient is φ = 124569720.

The previous prime is 143255429. The next prime is 143255467. The reversal of 143255431 is 134552341.

143255431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 143255431 - 2¹ = 143255429 is a prime.

It is a super-2 number, since 2×143255431² = 41044237021991522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143255431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143255401) 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, 282861 + ... + 283366.

It is an arithmetic number, because the mean of its divisors is an integer number (20384208).

Almost surely, 2^143255431 is an apocalyptic number.

143255431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143255431 is a deficient number, since it is larger than the sum of its proper divisors (19818233).

143255431 is a wasteful number, since it uses less digits than its factorization.

143255431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566261.

The product of its digits is 7200, while the sum is 28.

The square root of 143255431 is about 11968.9360847153. The cubic root of 143255431 is about 523.2433271403.

The spelling of 143255431 in words is "one hundred forty-three million, two hundred fifty-five thousand, four hundred thirty-one".